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Keto Blueberry Lemon Bread

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This keto blueberry lemon bread is soft, moist, and bursting with zesty citrus flavor and sweet blueberries. A perfect low-carb treat for breakfast or a guilt-free afternoon snack.

Ingredients

For the Bread:

5 large eggs, separated and at room temperature

½ cup (114 g) melted butter, cooled

¾ cup (120 g) fresh blueberries

3 tsp baking soda

½ cup (100 g) granulated keto sweetener (erythritol or monk fruit)

⅓ cup (40 g) coconut flour

2 cups (200 g) almond flour

1 lemon — zest and 3 tbsp lemon juice

½ cup (115 g) sour cream, at room temperature

For the Citrus Icing:

4 tbsp powdered keto sweetener

12 tbsp lemon juice

Instructions

Preheat the oven to 350°F (180°C) and line a loaf pan with parchment paper or lightly grease it.

In a clean bowl, beat the egg whites with an electric mixer until stiff peaks form (about 2 minutes). Set aside.

In another bowl, whisk together the egg yolks, cooled melted butter, lemon juice, and sour cream until smooth.

In a third bowl, mix almond flour, coconut flour, baking soda, sweetener, and lemon zest.

Add half of the beaten egg whites and the dry ingredients to the yolk mixture. Mix gently until combined.

Fold in the remaining egg whites carefully using a spatula to keep the batter light and airy.

Gently fold in the blueberries.

Pour the batter into the prepared loaf pan and smooth the top.

Bake for 65–70 minutes, or until golden and a toothpick inserted in the center comes out clean. (Check after 40 minutes and cover with foil if browning too quickly.)

Allow the bread to cool completely before adding the glaze.

Citrus Glaze:

Mix lemon juice with powdered sweetener until smooth.

Drizzle over the cooled bread and let set before slicing.

Notes

Store in the refrigerator for up to 5 days or freeze for up to 2 months.

For best flavor, use fresh lemon juice and zest.

Substitute blueberries with raspberries or blackberries for a variation.

Ensure the bread is completely cool before glazing to prevent melting.