Print

Keto Blueberry Lemon Mug Cake

Close-up of a freshly baked Keto Blueberry Lemon Mug Cake with whole blueberries baked into the bright yellow cake.

5 Stars 4 Stars 3 Stars 2 Stars 1 Star

No reviews

Prepare a quick, single-serving, low-carb cake flavored with blueberry and lemon using your microwave.

Ingredients

Scale
  • 2 tablespoons almond flour
  • 1 tablespoon erythritol or monk fruit sweetener
  • 1/4 teaspoon baking powder
  • Pinch of salt
  • 1 tablespoon melted unsalted butter
  • 1 large egg yolk
  • 1 teaspoon lemon juice
  • 1/2 teaspoon lemon zest
  • 1 tablespoon unsweetened almond milk
  • 1 tablespoon fresh or frozen blueberries

Instructions

  1. In a microwave-safe mug, whisk together the almond flour, sweetener, baking powder, and salt.
  2. Add the melted butter, egg yolk, lemon juice, and lemon zest to the dry ingredients. Mix until just combined.
  3. Stir in the almond milk until you have a smooth batter. Do not overmix.
  4. Gently fold in the blueberries.
  5. Microwave on high for 60 to 90 seconds. Cooking time varies by microwave wattage; start checking at 60 seconds. The cake should be set but still slightly moist in the center.
  6. Let the cake cool in the mug for one minute before eating.

Notes

  • If using frozen blueberries, do not thaw them before adding to the batter.
  • For a richer flavor, add 1/4 teaspoon of vanilla extract to the batter.
  • If your cake seems dry after cooking, reduce the next cooking time by 10 seconds.

Nutrition