Keto Almond Walnut Blueberry Muffins, Low-Sugar
Grain-free blueberry muffins made with ground almonds and walnuts, sweetened with xylitol or stevia for a lower-carb treat. Dense, nutty crumb with bursts of fresh or frozen blueberries. Perfect for breakfast, snacks, or meal prep. This version skips refined flour entirely, relying on nut flours for structure and richness—ideal for keto, paleo, or sugar-conscious bakers seeking bakery-quality results without the carbs.
Ingredients
- 1 ½ cup ground almonds
- ½ cup ground walnuts
- 2 teaspoon baking powder
- 1 pinch salt
- 3 tablespoon xylitol sweetenererythritol1:1sweetener
comparable taste and texture
- 3 eggs
- ¼ cup butter, melted
- ¼ cup water
- ¼ teaspoon vanilla extract
- 1 cup blueberries, fresh or frozen
Instructions
- 1
Combine ground almonds, walnuts, baking powder, and salt in a bowl.
- 2
In a separate bowl, lightly whisk eggs, then add melted butter, water, vanilla, and sweetener. Whisk until combined.
- 3
Pour wet ingredients into dry ingredients and stir until just combined.
- 4
Fold in blueberries gently.
- 5
Divide batter evenly among 8 muffin cups lined with paper liners and sprayed with cooking spray.
- 6
Bake at 350°F for about 20 minutes until a toothpick inserted in the center comes out clean.
Tips
Use frozen blueberries to prevent them from sinking and breaking apart during mixing. Toss them lightly in a bit of almond flour before folding in.
Fill any empty muffin cups halfway with water to ensure even, level baking across the tin.
Store muffins in an airtight container at room temperature for 2-3 days or freeze up to 3 months.
Good to Know
Airtight container at room temperature up to 3 days. Refrigerate up to 5 days. Freeze up to 3 months in an airtight freezer bag or container.
Batter can be made 1 day ahead and refrigerated. Bake fresh when ready. Muffins freeze beautifully; thaw at room temperature or reheat in a 300°F oven for 5 minutes.
Serve warm or at room temperature as a breakfast item, snack, or lunchbox addition. Pairs well with coffee, tea, or unsweetened almond milk.
Common Mistakes
Overmix the batter to avoid tough, dense muffins; stir just until dry ingredients are moistened.
Skip the water-filled empty cups to avoid uneven browning and dry muffins.
Use warm melted butter to avoid curdling eggs when combining wet ingredients.
Substitutions
Dairy-Free Swaps
Nut-Free Alternatives
General Alternatives
source-provided alternative, steeper learning curve for sweetness level
Full guide →source-provided alternative, more volume may affect texture slightly
Full guide →FAQ
Can I use fresh blueberries instead of frozen?
Yes. Fresh blueberries work but may sink during baking. Toss them lightly in almond flour before folding to distribute evenly and help them stay suspended in the batter.
What if I don't have ground almonds or walnuts?
Almond flour is a direct substitute. For walnuts, try pecans, macadamia, or hazelnut flour at a 1:1 ratio. Note that different nuts may slightly alter taste and moisture content.
How long do frozen muffins keep?
Up to 3 months in an airtight freezer container or bag. Thaw at room temperature for 30-45 minutes or reheat in a 300°F oven for 5-8 minutes for a warm, fresh texture.