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+ servings
Top view of lemon mug cake in a white mug on a grey background with a gold spoon

Lemon Mug Cake

This Lemon Mug Cake is a tangy and delicious dessert that you can throw together in no time. It's moist, soft, and packed with lemon flavor & poppy seeds!

Course Dessert
Cuisine American
Keyword easy cake recipe, easy lemon cake recipe, keto lemon cake, keto mug cake, lemon dessert recipes, mug cake, mug cake recipe
Prep Time 5 minutes
Cook Time 2 minutes
Total Time 7 minutes
Servings 1 serving
Calories 264 kcal
Author Kelly


  • 1 tbsp ghee (you can also sub with refined coconut oil or unsalted grass-fed butter)
  • 1 tbsp pure maple syrup (you can also sub with Lakanto sugar free maple syrup)
  • 1 1/2 tbsp lemon juice
  • 1/2 tsp lemon zest
  • 1/4 tsp vanilla
  • 1 large egg , I do not recommend a flax egg
  • 1/4 cup superfine almond powder
  • 1/2 tsp baking powder
  • 1/3 tsp poppy seeds

Optional Toppings

  • grated lemon zest
  • coconut cream
  • melted coconut butter manna


  1. In a large heat-safe mug or ramekin, add ghee or coconut oil & heat in microwave for 10-15 seconds or until just melted.

  2. Add maple syrup, lemon juice, lemon zest & vanilla and stir with a fork or a small whisk.

  3. Crack in egg and whisk until smooth. Add flour, baking powder & poppyseeds & mix until batter is combined and has no clumps.

  4. Microwave for 90-100 seconds or until set (depending on your microwave).

  5. Optional: Add toppings of choice / drizzle with melted coconut butter

Nutrition Facts
Lemon Mug Cake
Amount Per Serving (1 g)
Calories 264 Calories from Fat 180
% Daily Value*
Fat 20g31%
Saturated Fat 11g55%
Cholesterol 202mg67%
Sodium 67mg3%
Potassium 358mg10%
Carbohydrates 17g6%
Sugar 13g14%
Protein 6g12%
Vitamin A 238IU5%
Vitamin C 10mg12%
Calcium 169mg17%
Iron 1mg6%
* Nutrition facts are provided as a courtesy using the WPRM recipe calculator. It is best to make your own calculations to ensure accuracy. We expressly disclaim any and all liability of any kind with respect to any act or omission wholly or in part in reliance on anything contained in this website. Percent Daily Values are based on a 2000 calorie diet.