Go Back

Low Carb Chocolate Lava Mug Cake - Quick, Gooey, and Satisfying

Print Recipe Pin Recipe
Prep Time 5 minutes
Cook Time 2 minutes
Total Time 7 minutes
Servings: 1 servings
Ingredients Method

Ingredients
  

  • 3 tablespoons finely ground almond flour (not almond meal)
  • 1 tablespoon unsweetened cocoa powder (Dutch-process or natural)
  • 1 1/2 tablespoons granular erythritol, allulose, or your favorite low-carb sweetener
  • 1/2 teaspoon baking powder
  • Pinch of fine sea salt
  • 1 large egg, room temperature
  • 1 tablespoon unsalted butter, melted (or coconut oil)
  • 1 tablespoon unsweetened almond milk (or other low-carb milk)
  • 1/2 teaspoon vanilla extract
  • 1 square (about 10–12 g) sugar-free dark chocolate or 1 tablespoon sugar-free chocolate chips
  • Optional for serving: sugar-free whipped cream, a few raspberries, or a dusting of cocoa

Method
 

  1. Choose the right mug: Use a microwave-safe mug that holds at least 10–12 ounces. This gives the batter room to rise without spilling.
  2. Mix dry ingredients: In the mug, whisk together almond flour, cocoa powder, sweetener, baking powder, and salt. Break up any cocoa lumps with the back of a spoon.
  3. Add the wet: Crack in the egg, then add melted butter, almond milk, and vanilla. Whisk until the batter is smooth and glossy, scraping the bottom and sides.
  4. Make the lava center: Gently press the chocolate square into the center of the batter until just covered. Don’t push it to the bottom—keep it in the middle.
  5. Microwave: Cook on high for 40–60 seconds. Start checking at 40 seconds. The edges should look set, and the center should be slightly shiny and soft. Add 5–10 seconds at a time if needed.
  6. Rest briefly: Let the cake sit for 30–60 seconds. The carryover heat finishes the edges while keeping the center molten.
  7. Serve warm: Top with a dollop of sugar-free whipped cream or a few berries. Eat straight from the mug while the center is still gooey.