Keto Lemon Loaf
A moist, tender keto lemon loaf with just 3.2 net carbs per slice. Made with superfine almond flour, real lemon zest, and a sweet lemon glaze, this low-carb treat is perfect for breakfast or dessert.
Prep Time 10 minutes mins
Cook Time 1 hour hr
Total Time 1 hour hr 10 minutes mins
Course Breakfast, Dessert
Cuisine keto, low carb
Servings 12 slices
Calories 168 kcal
- 3 large eggs room temperature preferred
- ½ cup full-fat sour cream
- ¼ cup heavy whipping cream 35% fat
- ½ cup softened unsalted butter
- 1 teaspoon pure lemon extract
- 2½ cups superfine blanched almond flour
- ½ cup powdered sweetener erythritol or monk fruit blend
- 1 teaspoon aluminum-free baking powder
- ½ tablespoon lemon zest about ½ fresh lemon
- For the glaze:
- 2 tablespoons fresh lemon juice from 1 lemon
- ⅓ cup powdered sweetener same as above
- ½ teaspoon pure vanilla extract
Preheat oven to 350°F (175°C). Line a 9x5-inch loaf pan with parchment paper, leaving overhang for easy removal.
In a large bowl, cream together softened butter and powdered sweetener until light and fluffy (~2-3 minutes).
Add eggs one at a time, beating well after each addition. Mixture may look curdled—this is normal.
Mix in sour cream, heavy cream, and lemon extract until just combined.
In a separate bowl, whisk almond flour, baking powder, and lemon zest. Gradually fold dry ingredients into wet ingredients. Do not overmix.
Pour batter into prepared pan and smooth the top. Bake 55-65 minutes, or until a toothpick comes out clean or with a few moist crumbs. The top should be golden and spring back lightly.
While cooling, whisk together glaze ingredients until smooth. Let the loaf cool in the pan for at least 30 minutes before glazing.
Spread glaze evenly over cooled loaf and allow to set before slicing and serving.
Use room temperature eggs and dairy for best batter consistency. Avoid overbaking to prevent dryness; start checking at 55 minutes. Superfine almond flour is essential for smooth texture; do not substitute coconut flour. For dairy-free version, swap butter for softened coconut oil, sour cream for coconut yogurt, and heavy cream for coconut cream. Loaf stores well at room temperature for 3 days, or freeze sliced portions for up to 3 months. Optional variations: add a cream cheese swirl, extra lemon zest, or fold in blueberries dusted with almond flour for color and flavor.