This blueberry cake gets its natural violet color from freeze dried blueberries. This cake is sure to wow even your most jaded guest.

naturally colored blueberry cake.
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This stunning blueberry layer cake achieves its gorgeous natural purple hue without a drop of food coloring. As a professional pastry chef, I’ve spent years perfecting this recipe that combines freeze-dried blueberries for intense color and fresh blueberries for moisture.

The result? A tender, flavorful cake with blueberry cream cheese frosting that’s become one of my most-requested recipes!

close up slices of naturally colored blueberry cake.

Why This Recipe Continues to be a Reader Favorite

Since publishing this recipe’s predecessor years ago, I’ve received countless messages and photos from readers. My favorite came from a mother who made over 100 blueberry cupcakes for her daughter’s wedding using this recipe as her base.

What makes me happiest about this cake is how it brings people together. It’s impressive enough for special occasions but approachable enough that home bakers feel confident tackling it. That’s exactly what I aim for with every recipe I share—professional techniques made accessible.

The natural purple color never fails to wow guests. In an age of artificial everything, serving a cake that gets its stunning hue from real fruit feels special. It’s a conversation starter that also happens to taste incredible.

slices of purple blueberry layer cake with cream cheese frosting.

Ingredient Highlights

For the Blueberry Cake:

The key to success is using freeze-dried blueberries (found at Trader Joe’s, Whole Foods, or Amazon) ground into a fine powder. This gives you concentrated blueberry flavor and that signature purple color. Fresh blueberries are pureed and strained to add moisture without creating pockets of fruit that can make the cake soggy.

Buttermilk and a touch of lemon zest keep this cake bright and balanced—a technique I learned in professional pastry kitchens.

For the Blueberry Cream Cheese Frosting:

Equal parts butter and cream cheese create the perfect frosting consistency—sturdy enough for layering but still creamy and spreadable. More freeze-dried blueberry powder ensures the frosting matches the cake’s gorgeous color.

slices of naturally colored blueberry cake on white cake plate with cake forks.

How to Make Blueberry Layer Cake

Step 1: Prepare Your Blueberry Powder

Use a food processor to grind freeze-dried blueberries into a fine powder. This takes about 30 seconds. You’ll need two 1.2 oz packages total—one for the cake, one for the frosting.

Step 2: Make the Blueberry Puree

Blend 7 oz fresh blueberries until smooth, then strain through a fine-mesh sieve to remove skins. You should have about 5-6 oz of smooth puree after straining. This step is crucial for a smooth, professional texture.

Step 3: Mix the Cake Batter

Cream butter and sugars until light and fluffy (3-4 minutes). Add eggs one at a time, ensuring each is fully incorporated. Alternate adding the dry ingredients (flour, baking powder, salt, blueberry powder) with the wet ingredients (buttermilk, blueberry puree, vanilla) in three additions, starting and ending with dry.

Pro Tip: Don’t overmix once you add the flour. Mix just until you no longer see streaks—overmixing develops gluten and creates a tough cake.

Step 4: Bake to Perfection

Divide batter evenly among prepared pans (I use four 6-inch rounds for dramatic height, but three 8-inch pans work beautifully too). Bake at 350°F for 30-35 minutes until a toothpick comes out with just a few moist crumbs.

Baker’s Note: Let cakes cool in pans for 10 minutes before turning out onto cooling racks. This prevents crumbling.

Step 5: Make the Frosting

Beat softened butter and cream cheese until completely smooth with no lumps. Add blueberry powder, vanilla, powdered sugar, and salt. Beat on low speed first to avoid a sugar cloud, then increase to medium-high for 2-3 minutes until light and fluffy.

Step 6: Assemble and Decorate

Level your cake layers if needed for perfectly flat tops. Place the first layer on your serving plate or cake board, spread with about ¾ cup frosting, and repeat with remaining layers. Use remaining frosting for a simple crumb coat and final coat, or go rustic with a naked cake look.

Decoration Ideas: Top with fresh blueberries, edible flowers, gumpaste/fondant flowers, or leave it simple—the natural purple color speaks for itself.

blueberry cupcakes with blueberry blackberry cream cheese frosting garnished with white flowers.

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Tips From a Professional Pastry Chef

Measure Your Blueberry Puree After Straining: You need 7 oz of blueberries to yield about 5-6 oz of strained puree. If you measure before straining, you’ll end up with too little liquid and a dry cake.

Room Temperature Ingredients Are Essential: Cold eggs and butter don’t emulsify properly, leading to a dense cake. Set everything out 30-60 minutes before baking.

Don’t Skip the Lemon Zest: It’s not about making this a lemon cake—the zest brightens the blueberry flavor and cuts through the richness. Think of it as seasoning, not a primary flavor.

Check Your Baking Powder: Old baking powder won’t give you proper rise. Test it by adding ½ teaspoon to hot water—it should bubble vigorously.

Make-Ahead & Storage Notes

Make-Ahead: Bake cake layers up to 2 days ahead. Wrap tightly in plastic wrap and store at room temperature. For best results, may frosting the day you plan to frost and assemble.

Freezing: Unfrosted cake layers freeze beautifully for up to 3 months. Wrap in plastic wrap, then aluminum foil. Thaw in the refrigerator overnight before assembling.

Storage: Finished cake keeps at room temperature for 2 days or refrigerated for up to 5 days. Bring to room temperature 30 minutes before serving for the best texture and flavor.

purple blueberry layer cake with cream cheese frosting on white cake stand.

Common Questions

Can I use regular blueberries instead of freeze-dried?

No, fresh blueberries won’t give you the color or concentrated flavor. The freeze-dried blueberries are what make this recipe special. You can find them in the dried fruit section or order online.

Can I make this as cupcakes?

Absolutely! This batter makes about 24 cupcakes. Bake at 350°F for 18-22 minutes. Check out my original blueberry-blackberry cupcakes for inspiration.

Can I substitute oil for butter?

I don’t recommend it for this recipe. Butter provides structure and flavor that oil can’t replicate. The creaming method (beating butter and sugar) is also crucial for the texture.

What occasions is this cake perfect for?

Baby showers, bridal showers, spring and summer birthdays, Mother’s Day, or any time you want to serve something truly special. I’ve had readers make this for weddings!

5 from 1 vote

Blueberry Cake with Blueberry Cream Cheese Frosting

This naturally purple blueberry layer cake gets its vibrant color from freeze-dried blueberries. Moist, flavorful, and topped with blueberry cream cheese frosting.
Yield: 6-inch cake
Servings: 10 slices
blueberry layer cake
Prep Time: 20 minutes
Cook Time: 30 minutes
Assembly Time: 15 minutes
Total Time: 1 hour 5 minutes
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Ingredients

Blueberry Cake:

  • 3 ½ cups all-purpose flour (450 g)
  • 1 Tablespoon baking powder
  • ½ teaspoon kosher salt
  • 1.2 oz package freeze dried blueberries, ground into a powder*
  • 1 cup unsalted butter (227 g), room temp
  • 1 ⅓ cup granulated sugar (265 g)
  • cup light brown sugar (135 g), packed
  • 1 teaspon finely grated lemon zest
  • 4 large eggs, room temp
  • ¾ cup buttermilk, room temp
  • 7 oz fresh blueberries, pureed and strained (about 6oz after straining)*
  • 1 teaspoon vanilla paste, or pure vanilla extract

Blueberry Cream Cheese Frosting:

  • 1 cup unsalted butter (227 g), room temp
  • 8 oz cream cheese
  • 1 ½ tsp vanilla paste, or pure vanilla extract
  • 1.2 oz package freeze dried blueberries, ground to a powder
  • 4 cups powdered sugar (480 g)
  • ¼ teaspoon kosher salt

Instructions 

Blueberry Cake:

  • Prep: Preheat oven to 350°F. Line four 6-inch cake rounds (or three 8-inch rounds) with parchment paper. Lightly butter and set aside.
  • Dry Ingredients: In a medium bowl, whisk together flour, baking powder, salt, and blueberry powder. Set aside.
  • Cream Butter and Sugar: In a stand mixer fitted with paddle attachment, cream together butter, granulated sugar, and brown sugar on medium-high speed for 3-4 minutes until light and fluffy. Add lemon zest.
  • Add Eggs: Add eggs one at a time, mixing on medium speed until each is fully incorporated before adding the next. Scrape down bowl between additions.
  • Combine Wet Ingredients: In a measuring cup, whisk together buttermilk, strained blueberry puree, and vanilla.
  • Alternate Mixing: With mixer on low speed, add flour mixture in three additions, alternating with buttermilk mixture, beginning and ending with flour. Mix just until no streaks remain. Do not overmix. Scrape down bowl to ensure even mixing.
  • Bake: Divide batter evenly among prepared pans. Smooth tops with offset spatula or back of spoon. Bake for 30-35 minutes until toothpick inserted in center comes out with just a few moist crumbs.
  • Cool: Let cakes cool in pans for 10 minutes, then turn out onto cooling racks. Cool completely before frosting (about 1 hour)

Blueberry Frosting:

  • Beat Butter and Cream Cheese: In a stand mixer fitted with paddle attachment, beat butter and cream cheese on medium speed for 2-3 minutes until completely smooth with no lumps. Scrape down bowl as needed.
  • Add Remaining Ingredients: Add vanilla paste, blueberry powder, powdered sugar, and salt. Mix on low speed until combined, then increase to medium-high and beat for 2-3 minutes until light and fluffy.
  • Assemble: If desired, level cake layers with a serrated knife. Place first layer on serving plate or cake board. Spread with about ¾ cup frosting. Repeat with remaining layers. Use remaining frosting for crumb coat and final coat, or create a rustic naked cake look. Top with fresh blueberries if desired.

Notes

  • To make blueberry powder, pulse freeze-dried blueberries in a food processor for 30 seconds until finely ground. You’ll need two 1.2 oz packages total for this recipe.
  • IMPORTANT: Measure blueberries AFTER pureeing and straining, not before. You should have 5-6 oz of smooth puree after removing the skins.
Cake Pan Options: This recipe works with four 6-inch pans, three 8-inch pans, or two 9-inch pans. Adjust baking time as needed—larger pans may take 35-40 minutes.
Make It Cupcakes: This batter makes approximately 24 cupcakes. Bake at 350°F for 18-22 minutes.
Storage: Store at room temperature for up to 2 days or refrigerate for up to 5 days. Unfrosted cake layers freeze for up to 3 months.

Nutrition

Calories: 934kcal, Carbohydrates: 134g, Protein: 12g, Fat: 40g, Saturated Fat: 24g, Polyunsaturated Fat: 2g, Monounsaturated Fat: 11g, Trans Fat: 1g, Cholesterol: 177mg, Sodium: 662mg, Potassium: 300mg, Fiber: 2g, Sugar: 97g, Vitamin A: 1293IU, Vitamin C: 85mg, Calcium: 214mg, Iron: 4mg

Nutrition information is automatically calculated, so should only be used as an approximation.

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94 Comments

  1. Ashley Brown says:

    I made this cake for my daughter’s 5th birthday this past Sunday(yes, her birthday fell on Mother’s Day lol) and it is DELICIOUS!!! Even my picky husband likes it!! Thank you for posting the recipe!!

    1. Maryanne Cabrera says:

      Happy belated birthday to your daughter! I hope she had a wonderful celebration. I’m so glad you enjoyed the recipe! Thanks for giving it a try! :)

  2. Charlotte says:

    I made this cake last month and it was incredible. Perfect recipe! I’m so happy I stumbled across your blog. Can’t wait to try more recipes!

    1. Maryanne Cabrera says:

      Thank you for trying out the recipe! I’m so glad you enjoyed it! Happy baking! :)

  3. Allison says:

    The recipe says to use 4 cake pans in the picture there looks to be five layers. Should 5 pans be used or did you cut a layer in half? I am making this for a party of 20 people so I’m trying to figure out how much to increase the recipe.

    1. Maryanne Cabrera says:

      Hi Allison, I baked the cake using four 6-inch cake pans and then sliced each cake into two layers. However, I didn’t end up using all the cake layers (as photographed). You can also bake this recipe using four 8-inch cake pans.

  4. Chelsea says:

    Thank you for this awesome recipe! Though the flavor was great it turned out quite dry. The only thing I could think that might have been wrong was the amount of blueberry puree. Is it 7oz before or after pureed??? I will be trying this again.

  5. Amelia F Hollander says:

    Just wanted to thank you for this recipe! I made it for my blueberry-mad son’s 4th birthday party today.. with gluten-free baking mix (Pamela’s) and it turned out GREAT! One dad said it was the yummiest cake he’d ever had.

  6. Katy Wright says:

    Maryanne,
    Thank you for the cupcake recipe referral. I made them for my Grandson’s birthday & they were spectacular. Not only did they look beautiful, they were scrumptious. Everyone wanted to know how I made them. Thank you. I will definitely use this recipe again.
    Katy

  7. Katy Wright says:

    My Grandson has requested blueberry cupcakes for his 6th birthday party. There are going to be 60 attending. How many cupcakes does your recipe make? I’m trying to figure out if I should triple it????? Let me know what you think. It looks & sounds delicious & I’m sure will be a hit!!

  8. Jill E Tompkins says:

    Can this be adapted for a sheet cake? Not nearly as lovely but I have to feed 30 people.

    1. Maryanne Cabrera says:

      Sorry, I haven’t tried using this recipe for a sheet cake. I’m not sure how it will turn out.

  9. aLEXIS says:

    I made the cake and used an alternate frosting recipe. I followed the recipe exactly and I am an experienced baker, but I was disappointed. The flavor of the cake was good, but I disliked the texture. It was dense and kind of gummy. I have had the same experience trying to adapt a cake recipe to incorporate powdered freeze-dried strawberries and I can never seem to get a cake with a nice texture.

    1. Maryanne Cabrera says:

      I’m sorry to hear that. I’ve made this cake several times with consistent results. I have found that it makes a difference whether you use freshly ground freeze dried berries versus freeze dried berries that have been ground into a powder earlier. As the ground freeze dried berries sit out, it does absorb moisture and humidity- which could lead to the gummy texture.

  10. Sarah says:

    Beautiful cake! I am planning on making this for my daughter’s birthday, can I make it a day before the party? How do you suggest storing it?

    1. Maryanne Cabrera says:

      Yes, you can make it the day before. Keep it in the fridge overnight. Allow the cake to come to room temperature before serving. (A few notes about keeping cake in the fridge: make sure the fridge is free from any strong odors from other foods (leftovers, open containers, garlic, pickles, etc.). The frosting WILL pick up and absorb all those flavors. You could protect the cake by keeping in a cardboard cake box.)