Keto Blueberry Butter Cake – Gluten-Free & Grain-Free

This Keto Blueberry Butter Cake is a simple, buttery dessert with a moist crumb, juicy blueberries, and pockets of melted cream cheese throughout. Made with almond flour and coconut flour, this easy low-carb cake is naturally gluten-free and grain-free.

Why You’ll Love It!

Fresh blueberries add plenty of fruity flavor, while lemon zest and juice brighten the buttery cake. The cream cheese melts into the batter as it bakes, creating rich, creamy bites throughout.

Best of all, this gluten-free blueberry cake is incredibly easy to make. There is no complicated technique or special equipment, just mix, assemble, and bake.

Recipe Highlights

• Easy to make: Simple ingredients and straightforward preparation.
• Naturally gluten-free and grain-free: Made with almond flour and coconut flour instead of wheat flour.
• Low-carb: A great option when you want a fruity dessert without traditional flour and sugar.
• Buttery and tender: The almond flour and butter create a rich, soft crumb.
• Fresh blueberry flavor: Juicy blueberries are baked right into the cake.
• Cream cheese pockets: Cubes of cream cheese melt into the cake for little bites of creamy richness.

Another one of my favourite keto desserts is the Keto Cream Cheese Lemon Bar, or my favorite Mediterranean Keto Pizza.

Key Ingredients & Substitutions

Almond flour: Use finely ground blanched almond flour for the best texture. I don’t recommend substituting almond flour with another flour, as it provides much of the structure and tenderness of the cake.

Coconut flour: Only 1 tablespoon is needed, but it helps absorb moisture and gives the cake structure. Because coconut flour is highly absorbent, I don’t recommend replacing it with an equal amount of another flour.

Blueberries: Fresh blueberries work beautifully in this cake. Frozen blueberries can also be used without thawing first, although they may add a little extra moisture to the cake.

Butter: Use softened unsalted butter so it blends easily with the low-carb sweetener.

Cream cheese: Full-fat cream cheese gives the best texture and flavor. Cut it into small cubes so the cream cheese distributes easily throughout the cake.

Lemon: Fresh lemon zest and juice add freshness and balance the richness of the butter and cream cheese.

Can I use a different low-carb sweetener?

Yes, although the result may vary depending on the sweetener. A granulated pure monk fruit or erythritol-based blend is generally the easiest substitution. Since different sweeteners have different levels of sweetness, check the manufacturer’s conversion recommendations before substituting.

My Tested Kitchen Tips

• Use room-temperature eggs so they incorporate easily into the butter mixture.
• Soften the butter before mixing to help create a smooth batter.
• Tossing the blueberries with a little of the dry mixture helps distribute them more evenly throughout the cake.
• Keep an eye on the cake during the final 10–15 minutes of baking. You want the top golden and set without overbaking the cake.
• Allow the cake to cool before slicing. This gives the crumb time to set and makes the cream cheese pockets easier to cut through.

Storing and Freezing

Because this cake contains cream cheese, store it covered in the refrigerator for up to 4 days.

For the best texture, let the cake come to room temperature before serving.

Can I freeze Keto Blueberry Butter Cake?

Yes. Once completely cooled, cut the cake into individual portions and wrap them well before placing them in a freezer-safe container or bag. Freeze for up to 2 months.

Thaw the cake overnight in the refrigerator, then bring it to room temperature before serving.

You may also enjoy a couple of my favorite keto meals like this Easy Keto Zucchini Baked Ziti, or my favorite the Keto Skillet Tomato Cheese Pasta.

Hi, I’m Kristina, a gluten-free recipe developer creating and testing recipes since 2012. Every recipe on this site is made in my kitchen and personally tested (with the help of my very honest family!).

Did you make this recipe? I’d love to hear how it turned out! Leave a ⭐⭐⭐⭐⭐ rating and a quick review below, it helps other gluten-free cooks discover recipes they can trust.

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