Keto Cinnamon Roll Mug Cake

Posted on December 30, 2025

Keto Cinnamon Roll Mug Cake

Difficulty

Prep time

Cooking time

Total time

Servings

Craving a warm, gooey cinnamon roll but trying to stay on track with your keto lifestyle? The Keto Cinnamon Roll Mug Cake is the perfect solution. This quick, single-serving dessert delivers all the comforting flavors of a classic cinnamon roll—sweet cinnamon swirls, soft cake texture, and rich aroma—without the sugar overload or carb crash.

Traditional cinnamon rolls are loaded with refined flour, sugar, and unhealthy carbs that can easily knock you out of ketosis. This keto-friendly mug cake replaces those ingredients with low-carb alternatives like almond flour, keto-approved sweeteners, and healthy fats. The result is a fluffy, moist cake that tastes indulgent while keeping your macros in check.

What makes this recipe truly special is its convenience. It’s made in one mug, mixed in minutes, and cooked in the microwave—no oven, no long prep, and no cleanup stress. Whether you need a fast keto dessert, a cozy late-night treat, or a low-carb breakfast option, this mug cake fits perfectly into your routine.

This recipe is ideal for beginners on keto, busy professionals, or anyone looking to satisfy sweet cravings without guilt. Once you try it, it’s guaranteed to become one of your go-to keto desserts.

Keto Cinnamon Roll Mug Cake

Prep Time 5 minutes
Cook Time 2 minutes
Total Time 7 minutes
Servings: 1
Course: Dessert
Cuisine: American
Calories: 280

Ingredients
  

For the Mug Cake:
  • 3 tablespoons almond flour
  • 1 tablespoon coconut flour
  • 1 tablespoon powdered erythritol or monk fruit sweetener
  • ½ teaspoon baking powder
  • 1 teaspoon ground cinnamon
  • Pinch of salt
  • 1 large egg
  • 1 tablespoon melted butter or coconut oil
  • 1 tablespoon unsweetened almond milk
  • ½ teaspoon vanilla extract
For the Cinnamon Swirl:
  • 1 tablespoon melted butter
  • 1 tablespoon powdered erythritol
  • ½ teaspoon ground cinnamon
Optional Keto Glaze:
  • 2 tablespoons powdered erythritol
  • 1 tablespoon heavy cream or coconut cream
  • ¼ teaspoon vanilla extract

Equipment

  • 1 Microwave-safe mug (10–12 oz)
  • 1 Measuring spoons
  • 1 Measuring cups
  • 1 Small bowl (for swirl)
  • 1 Spoon or fork
  • 1 Microwave

Method
 

Step 1: Prepare the Mug
  1. Lightly grease a microwave-safe mug with butter or coconut oil to prevent sticking.
Step 2: Mix Dry Ingredients
  1. In the mug, add almond flour, coconut flour, powdered sweetener, baking powder, cinnamon, and salt. Mix well to remove lumps.
Step 3: Add Wet Ingredients
  1. Add the egg, melted butter or coconut oil, almond milk, and vanilla extract. Stir thoroughly until a smooth batter forms.
Step 4: Prepare the Cinnamon Swirl
  1. In a small bowl, mix melted butter, powdered erythritol, and cinnamon until smooth.
Step 5: Create the Swirl
  1. Spoon the cinnamon mixture over the batter and gently swirl it using a toothpick or spoon.
Step 6: Microwave
  1. Microwave on high for 60–90 seconds. Cooking time may vary depending on microwave power. The cake should be set but slightly soft in the center.
Step 7: Add Optional Glaze
  1. Mix glaze ingredients and drizzle over the warm mug cake before serving.

Notes

Nutritional Facts and Total Calories (Approximate)

  • Calories: 280
  • Fat: 23g
  • Protein: 9g
  • Total Carbs: 8g
  • Fiber: 4g
  • Net Carbs: 4g

Keto Cinnamon Roll Mug Cake

Keto Cinnamon Roll Mug Cake

Ingredient Notes

Almond Flour:
Almond flour is the main low-carb flour substitute used in keto baking. It provides moisture, a slightly nutty flavor, and a soft crumb similar to traditional flour. Always use finely ground blanched almond flour for best results.

Coconut Flour:
Coconut flour is highly absorbent and helps balance moisture in mug cakes. A small amount goes a long way, improving structure and preventing sogginess.

Powdered Erythritol or Monk Fruit Sweetener:
Powdered sweeteners dissolve more easily than granulated ones, ensuring a smooth texture without graininess. These sweeteners have zero net carbs and do not spike blood sugar.

Baking Powder:
Essential for leavening, baking powder helps the mug cake rise and become fluffy instead of dense.

Ground Cinnamon:
The star flavor of this recipe. Cinnamon adds warmth, sweetness, and that unmistakable cinnamon roll aroma.

Salt:
A small pinch of salt enhances sweetness and balances the flavors.

Egg:
The egg provides structure, moisture, and protein. Make sure it’s at room temperature for even mixing.

Butter or Coconut Oil:
Adds richness and moisture. Butter gives a classic cinnamon roll flavor, while coconut oil keeps it dairy-free.

Unsweetened Almond Milk:
Adds moisture without carbs. You can also use coconut milk or macadamia milk.

Vanilla Extract:
Enhances sweetness and rounds out the flavor profile.

Cinnamon Swirl Ingredients:
The swirl creates that iconic cinnamon roll center. Using melted butter and powdered sweetener ensures a gooey texture.

Optional Keto Glaze:
This glaze mimics classic icing without sugar. It’s optional but highly recommended for an authentic cinnamon roll experience.

Serving Instructions

Serve the keto cinnamon roll mug cake warm directly from the mug. It pairs perfectly with:

  • Keto coffee or bulletproof coffee
  • Unsweetened almond milk
  • A dollop of keto whipped cream

This mug cake works well as a dessert, breakfast treat, or afternoon snack.

Tips

  • Do not overcook; mug cakes firm up as they cool.
  • Use powdered sweetener for best texture.
  • Add chopped pecans or walnuts for crunch.
  • For extra moisture, add 1 teaspoon of cream cheese to the batter.
  • Let it sit for 1 minute before eating to set fully.

Storage Information

Room Temperature:
Best eaten fresh.

Refrigerator:
Can be stored covered for up to 24 hours. Reheat for 10–15 seconds before serving.

Freezer:
Not recommended, as texture may change.

FAQs

1. Is this mug cake keto-friendly?

Yes, it uses low-carb flours and sugar-free sweeteners suitable for keto.

2. Can I bake this in the oven instead?

Yes, bake at 350°F (175°C) for 12–15 minutes in an oven-safe ramekin.

3. Can I make this dairy-free?

Absolutely. Use coconut oil and coconut cream instead of butter and heavy cream.

4. Why is my mug cake dry?

Overcooking or too much coconut flour can cause dryness. Measure carefully.

5. Can I double the recipe?

Yes, but cook in two separate mugs for even cooking.

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