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Keto Lavender Lemon Mug Cake Recipe

A keto lemon mug cake is a sweet and refreshing treat. Add a hint of lavender to this low-carb lemon cake to bring it to another level. There’s something about the lavender lemon flavor combo that feels classy and sophisticated.

Want to feel like you’re attending a tea party with the elite? Okay, maybe that’s extreme, but I feel fancier than I am when I eat this lavender lemon mug cake. Find out how to make this low-carb treat in about 5 minutes.

Lemon cake in a white mug topped with lavender.

Low-Carb Lemon Mug Cake with Lavender

Lemon is such a lovely scent and flavor. It’s fresh and light and reminds me of spring. Lavender is relaxing and often used in aromatherapy. Culinary lavender is possibly an acquired taste and if you’re new to it be sure to read the notes below.

If you want to skip the lavender, use this recipe for low-carb lemon mug cake.

At about 5g net carbs, enjoy this lavender lemon mug cake as a tasty low-carb dessert.

Dry ingredients in mug with dried lavender, lemon, and other ingredients on table.

Keto Lemon Lavender Mug Cake Ingredients

(Exact measurements are in the recipe card below.)

Mug Cake:

  • Almond flour
  • Coconut flour
  • Baking powder
  • Granular Swerve
  • Egg
  • Melted butter
  • Low-carb milk
  • Lemon juice
  • Lemon zest
  • Food grade lavender essential oil or culinary lavender extract


  • Confectioners Swerve
  • Water or lemon juice
  • Optional: Dried culinary lavender

Lemon Mug Cake Directions

In a microwave-safe mug, combine the almond flour, coconut flour, baking powder, and granular Swerve until well incorporated.

Dry ingredients in a white mug with other ingredients on table.

Add the egg, melted butter, milk, lemon juice, 1/2 tsp of the lemon zest, and a drop of lavender essential oil. Stir until combined.

Table of ingredients for lavender lemon mug cake.

Microwave for 1 1/2 – 2 minutes or until the cake is cooked through.

Mug cake after cooked with lemon zest and lavender on table.

To make the glaze combine the confectioners Swerve with water or lemon juice.

Glaze for keto lemon mug cake.

Drizzle the glaze over the mug cake and top with additional lemon zest, lavender, and confectioners Swerve.

Lemon zest in a spoon over the lemon mug cake.

Serve and enjoy!

Lemon cake in a mug with lemons and lavender around on the table.

Lavender Cake Recipe Tips and FAQ

How to get the perfect lavender flavor.

If you happen to love culinary lavender, one drop is probably fine in this recipe. However, most people who’ve tried this recipe think a full drop is a dash too much. It’s almost impossible to do 1/2 a drop, so the answer is to double the ingredients.

For the perfect balance of flavor, make two mug cakes with the one drop of lavender. Share with a friend, or cover half and store in the refrigerator for the next day.

Keto Lemon Lavender Mug Cake Recipe
Yield: 1 mug cake

Keto Lemon Lavender Mug Cake Recipe

Prep Time: 3 minutes
Cook Time: 2 minutes
Total Time: 5 minutes

Lemon and lavender cake in a mug. A delicious and refreshing flavor combo in a low-carb cake.

Net carbs for cake and glaze made with lemon juice: 5g


Mug Cake

  • 3 Tablespoons almond flour
  • 1 Tablespoon coconut flour
  • 1⁄2 teaspoon baking powder
  • 2 Tablespoons granular swerve
  • 1 egg
  • 1 Tablespoon melted butter
  • 2 Tablespoons low-carb milk
  • 1 teaspoon lemon juice
  • 1 teaspoon lemon zest, divided
  • 1 drop food grade lavender essential oil OR culinary lavender extract


  • 1 Tablespoon confectioners Swerve 
  • 1 drop water or lemon juice
  • Dried culinary lavender (optional)


  1. In an 8 ounce mug, combine the almond flour, coconut flour, baking powder, and swerve. Stir until combined.
  2. Add the egg, melted butter, milk, lemon juice, ½ tsp of the lemon zest, and 1 small drop of the lavender essential oil. Stir until well incorporated.
  3. Microwave for 1 1/2 - 2 minutes or until the cake is cooked through.
  4. Prepare the glaze by combining the confectioners swerve with water or lemon juice. Drizzle over mug cake and top with additional lemon zest, lavender and confectioners swerve.
  5. Enjoy.


One drop of lavender might be too much unless you love culinary lavender. The perfect amount would be a 1/2 a drop. That's difficult to measure, so you can double the ingredients to make 2 mug cakes if you choose.

Nutrition facts calculated using Carb Manager and are not guaranteed to be 100% accurate.

Main nutrition facts include the cake and the glaze mixed with lemon juice.

Cake alone is 4.9 net carbs.

If you use all the glaze it's 0.1 additional net carbs.

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Nutrition Information:



Serving Size:

1 mug cake

Amount Per Serving: Calories: 339Total Fat: 28.9gCholesterol: 217mgCarbohydrates: 43.5gNet Carbohydrates: 5gFiber: 5.5gSugar: 2.6gSugar Alcohols: 33gProtein: 12.1g

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Lemon mug cake in a mug topped with lavender.

Please let me know if you try this keto lemon mug cake with lavender.

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