Keto Blueberry Muffins - Soft and Fluffy

These keto blueberry muffins are soft, moist, and fluffy with a texture that tastes much closer to a traditional blueberry muffin. I use cottage cheese, almond flour, and a small amount of coconut flour to keep them tender, then press the blueberries into the batter so every muffin has the perfect amount.

What Makes These Muffins So Soft and Fluffy

Keto muffins can be tricky because almond flour does not act like regular flour. It can turn out too dense, too wet, or a little crumbly if the ingredient ratio is off.

The cottage cheese is what keeps these muffins so moist and soft. Once it is blended into the batter, you do not taste it at all, but it gives the muffins a really tender crumb.

The tablespoon of coconut flour helps too. It absorbs just enough moisture to give the muffins more of a traditional muffin texture instead of wet or dense.

I also blend the batter so everything gets smooth and evenly mixed. Then, instead of stirring in the blueberries, I press them into each muffin before baking. This keeps the berries whole, evenly spread out, and keeps the batter from turning purple.

Ingredients You'll Need

These keto blueberry muffins use simple low carb baking ingredients, but the cottage cheese and small amount of coconut flour are what make the texture so soft and fluffy.

Almond flour: Use finely ground blanched almond flour for the best texture. Almond meal is more coarse and can make the muffins heavier.

Coconut flour: You only need 1 tablespoon, but it helps absorb extra moisture and gives the muffins a more traditional muffin texture.

Cottage cheese: This keeps the muffins soft, moist, and adds protein. Once it is blended into the batter, you do not taste it.

Sugar free sweetener: Use your favorite granulated sugar free sweetener. I like one that measures 1:1 with sugar.

Eggs: The eggs help the muffins rise and hold together.

Vanilla extract: This gives the muffins that classic sweet bakery flavor.

Baking powder and salt: Baking powder helps the muffins rise and gives them a lighter, fluffier texture. Salt balances the sweetness and brings out the blueberry and vanilla flavor.

Blueberries: Fresh blueberries work best for the prettiest muffins, but frozen blueberries can also be used. I like pressing them into each muffin instead of mixing them into the batter so they stay whole and evenly distributed.

If you want a simple base recipe without blueberries, try my almond flour muffins.

How To Make Them

This batter comes together right in the blender, which makes the texture smooth and keeps the recipe really easy.

Add the cottage cheese, eggs, and vanilla to the blender first for easier blending. Then add the sweetener, almond flour, coconut flour, baking powder, and salt. Blend until the batter is completely smooth.

Blend until the batter is completely smooth. You should not see any pieces of cottage cheese once it is fully blended.

Line a 12-cup muffin pan with paper liners, then spray the liners with cooking spray so the muffins do not stick. Divide the batter evenly between the muffin cups.

Press about 7-9 blueberries into the top of each muffin. I like doing it this way instead of stirring them into the batter because the blueberries stay whole and every muffin gets the right amount.

Bake at 350F for about 25 minutes, or until the muffins are set in the center and lightly golden on top.

Let the muffins cool in the pan for a few minutes, then transfer them to a wire rack. For the best result, let them cool completely before serving.

Tips For the Best Texture

• Use finely ground almond flour. Almond meal is more coarse and can make the muffins heavier or grainy.
• Blend the batter until it is completely smooth. This helps the cottage cheese disappear into the batter and gives the muffins a softer texture.
• Do not skip the coconut flour. You only need 1 tablespoon, but it helps absorb extra moisture and gives the muffins more of a traditional muffin crumb.
• Spray the muffin liners. Keto muffins can stick more than regular muffins, so I like to spray the inside of the liners before adding the batter.
• Press the blueberries into the batter instead of mixing them in. This keeps the berries whole, helps every muffin get an even amount, and keeps the batter from turning purple.
• Let the muffins cool before eating. They will be soft when they first come out of the oven, but the texture gets better as they cool and set.

Fresh vs Frozen Blueberries

Fresh blueberries will give you the prettiest muffins because they stay whole and do not bleed color into the batter as much.

Frozen blueberries will also work, but don't thaw them first. Use them straight from the freezer and press them into the batter right before baking. They may release a little more color as they bake, but the muffins will still taste great.

For the cleanest look, fresh blueberries are my first choice. For convenience, frozen blueberries are perfectly fine.

Substitutions

Greek yogurt: Greek yogurt still works in place of the cottage cheese. I originally made these muffins with unsweetened Greek yogurt, and they were still moist and fluffy. Cottage cheese gives the muffins a little more of a traditional muffin texture, but Greek yogurt is a good backup.

Sour cream: Sour cream may also work in place of the cottage cheese, but I prefer cottage cheese or Greek yogurt for this recipe because they blend smoothly and add more protein for fewer calories.

Sweetener: Use your favorite granulated sugar free sweetener that measures 1:1 with sugar. Just keep in mind that different sweeteners can change the flavor and texture slightly.

Almond flour: I do not recommend replacing the almond flour with coconut flour. Coconut flour absorbs a lot more liquid, so it cannot be swapped evenly. If you need a nut-free option, sunflower seed flour is the best 1:1 replacement, but it can sometimes turn baked goods slightly green after baking.

Coconut flour: I would not skip the tablespoon of coconut flour if you want the best texture. It helps absorb extra moisture and gives the muffins a softer, more traditional crumb.

Blueberries: Fresh or frozen blueberries both work. If using frozen, do not thaw them first.

Dairy-free: I have not tested this recipe with dairy-free cottage cheese or yogurt, so I cannot say for sure how it would turn out.

Nut-free: Sunflower seed flour can usually be used as a 1:1 replacement for almond flour and is a good nut-free option. Just know that it can sometimes react with baking powder and turn baked goods slightly green as they cool. They are still safe to eat, but the color can look a little surprising.

Storage and Freezing

Store leftover keto blueberry muffins in an airtight container in the refrigerator for up to 1 week. Because these muffins are so moist, I prefer the refrigerator over leaving them on the counter.

To freeze, let the muffins cool completely, then place them in a freezer-safe bag or container. You can freeze them for up to 3 months.

When you are ready to eat one, thaw it in the refrigerator overnight or microwave it for about 20 to 30 seconds. They are perfect to keep in the freezer for a quick breakfast, snack, or something sweet after dinner.

Frequently Asked Questions

More Keto Muffin Recipes

If you like keeping low carb muffins on hand for breakfast or snacks, here are a few more to try next. My keto chocolate chip muffins are great when you want something sweet, and my keto banana nut muffins have that classic bakery muffin flavor. For a simple base recipe, try my almond flour muffins, or make my keto blueberry quick bread if you want another easy blueberry recipe.

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