Keto Cinnamon Roll Mug Cake – A Cozy Low-Carb Treat in Minutes

If you’re craving a warm, cinnamon-swirled treat but don’t want the carbs or the mess, this keto cinnamon roll mug cake has your back. It’s soft, sweet, and ready in about five minutes from start to finish. No yeast, no dough rolling, and no oven required.

Just mix, microwave, and enjoy. It’s the kind of single-serve dessert that feels like a hug in a mug.

Keto Cinnamon Roll Mug Cake - A Cozy Low-Carb Treat in Minutes

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Prep Time 5 minutes mins

Cook Time 2 minutes mins

Total Time 7 minutes mins

Servings: 1 servings

Ingredients Method

Ingredients

  

• For the mug cake:
• 3 tablespoons fine almond flour
• 1/2 tablespoon coconut flour
• 1 tablespoon granulated erythritol or allulose (or your favorite keto baking sweetener)
• 1/2 teaspoon baking powder
• 1/4 teaspoon ground cinnamon
• Pinch of salt
• 1 large egg
• 1 tablespoon unsalted butter, melted (or coconut oil)
• 1 tablespoon unsweetened almond milk (or heavy cream)
• 1/2 teaspoon vanilla extract
• For the cinnamon swirl:
• 1 teaspoon melted butter
• 1/2 teaspoon ground cinnamon
• 1 teaspoon brown-style keto sweetener (or granulated)
• For the glaze:
• 2 tablespoons powdered keto sweetener
• 1–2 teaspoons unsweetened almond milk or heavy cream
• 1/4 teaspoon vanilla extract
• Pinch of salt (optional, to balance sweetness)

Method

 

1. Choose the right mug: Use a microwave-safe mug that holds at least 12 ounces. Lightly grease it with butter or nonstick spray.
2. Mix dry ingredients: In the mug, whisk together almond flour, coconut flour, sweetener, baking powder, cinnamon, and a small pinch of salt until no lumps remain.
3. Add wet ingredients: Add the egg, melted butter, almond milk, and vanilla. Stir until the batter is smooth and evenly combined.
4. Make the cinnamon swirl: In a small bowl, mix melted butter, cinnamon, and brown-style sweetener. Drizzle over the batter and use a toothpick or knife to gently swirl it in.
5. Microwave: Microwave on high for 60–90 seconds. Start checking at 60 seconds. The cake should look set on top but still moist. Avoid overcooking.
6. Make the glaze: Stir powdered sweetener, vanilla, and just enough milk or cream to reach a thick drizzle. Add a tiny pinch of salt if desired.
7. Finish and serve: Let the cake rest for 1 minute to set. Drizzle with glaze and enjoy warm.

What Makes This Recipe So Good

• Fast and easy: One mug, a spoon, a few pantry staples, and a microwave. You can make it faster than you can preheat an oven.
• Low-carb and sugar-free: Uses almond flour and keto-friendly sweetener, so you stay on track without feeling deprived.
• Soft and tender texture: A touch of coconut flour and an egg gives this cake a surprisingly bakery-style crumb.
• Comforting cinnamon swirl: A quick swirl mixture adds that classic cinnamon roll vibe without the heavy dough.
• Customizable: Change the spices, sweetener, or add-ins to suit your taste and macros.

Ingredients

• For the mug cake:
• 3 tablespoons fine almond flour
• 1/2 tablespoon coconut flour
• 1 tablespoon granulated erythritol or allulose (or your favorite keto baking sweetener)
• 1/2 teaspoon baking powder
• 1/4 teaspoon ground cinnamon
• Pinch of salt
• 1 large egg
• 1 tablespoon unsalted butter, melted (or coconut oil)
• 1 tablespoon unsweetened almond milk (or heavy cream)
• 1/2 teaspoon vanilla extract
• For the cinnamon swirl:
• 1 teaspoon melted butter
• 1/2 teaspoon ground cinnamon
• 1 teaspoon brown-style keto sweetener (or granulated)
• For the glaze:
• 2 tablespoons powdered keto sweetener
• 1–2 teaspoons unsweetened almond milk or heavy cream
• 1/4 teaspoon vanilla extract
• Pinch of salt (optional, to balance sweetness)

Instructions

1. Choose the right mug: Use a microwave-safe mug that holds at least 12 ounces.

   Lightly grease it with butter or nonstick spray.

2. Mix dry ingredients: In the mug, whisk together almond flour, coconut flour, sweetener, baking powder, cinnamon, and a small pinch of salt until no lumps remain.
3. Add wet ingredients: Add the egg, melted butter, almond milk, and vanilla. Stir until the batter is smooth and evenly combined.
4. Make the cinnamon swirl: In a small bowl, mix melted butter, cinnamon, and brown-style sweetener. Drizzle over the batter and use a toothpick or knife to gently swirl it in.
5. Microwave: Microwave on high for 60–90 seconds.

   Start checking at 60 seconds. The cake should look set on top but still moist. Avoid overcooking.

6. Make the glaze: Stir powdered sweetener, vanilla, and just enough milk or cream to reach a thick drizzle.

   Add a tiny pinch of salt if desired.

7. Finish and serve: Let the cake rest for 1 minute to set. Drizzle with glaze and enjoy warm.

Storage Instructions

• Short-term: If you have leftovers, cover and refrigerate for up to 2 days. The texture is best fresh, but it will still taste great.
• Reheat: Microwave in 10–15 second bursts until warm.

  Add a fresh drizzle of glaze if it looks dry.

• Make-ahead: Mix the dry ingredients in a jar ahead of time. When you’re ready, add the wet ingredients and microwave. This is perfect for busy mornings.

Why This is Good for You

• Lower in carbs: Almond and coconut flour keep net carbs down, supporting keto goals without sacrificing flavor.
• No added sugar: Using a keto-friendly sweetener helps manage blood sugar and cravings.
• Healthy fats and protein: The egg and butter provide satisfying fats and protein for steady energy.
• Comfort without the crash: You get that cozy cinnamon roll feeling without the heavy dough or post-dessert slump.

Common Mistakes to Avoid

• Overcooking: Mug cakes go from soft to dry quickly.

  Check at 60 seconds and add time in short bursts.

• Using only almond flour: A little coconut flour helps structure and tenderness. Skipping it can make the cake dense.
• Too much sweetener: Over-sweetening can cause bitterness or a cooling aftertaste with some keto sweeteners. Stick to the amounts listed and adjust gradually.
• Cold ingredients: Very cold eggs or milk can seize melted butter and cause lumps.

  Room temperature ingredients mix more smoothly.

• Wrong mug size: A small mug can cause overflow and uneven cooking. Use a larger, microwave-safe mug.

Recipe Variations

• Cream cheese center: Press a teaspoon of softened cream cheese into the center of the batter before microwaving for a gooey surprise.
• Pecan crunch: Add 1 tablespoon chopped pecans to the batter or the swirl for a classic cinnamon roll vibe.
• Coffee-shop twist: Add 1/4 teaspoon espresso powder to the batter. It intensifies the cinnamon and adds depth.
• Dairy-free: Use coconut oil instead of butter and almond milk for the glaze.

  A dairy-free cream cheese works well for a frosting-style topping.

• Maple-cinnamon glaze: Add a drop or two of maple extract to the glaze for a pancake-house flavor without the sugar.
• Protein boost: Whisk in 1/2 scoop unflavored or vanilla whey isolate. Add a teaspoon more almond milk if needed to keep the batter smooth.

FAQ

Can I bake this in the oven instead of the microwave?

Yes. Pour the batter into a small oven-safe ramekin and bake at 350°F (175°C) for about 12–15 minutes, or until set in the center.

Keep an eye on it so it doesn’t dry out.

Which keto sweetener works best?

Allulose gives the softest texture and least aftertaste. Erythritol or blends with stevia or monk fruit also work well. Use a powdered form for the glaze to avoid grittiness.

Can I replace the coconut flour?

You can, but the texture will change.

If you skip it, add about 1 more tablespoon almond flour and reduce the liquid slightly. The cake may be a bit denser.

Why did my mug cake turn rubbery?

It was likely overcooked. Microwaves vary, so start low on time and add 10-second bursts.

Using too much sweetener or a large egg in a small batter can also affect texture.

Is this recipe gluten-free?

Yes. Almond flour and coconut flour are naturally gluten-free. Just check labels on sweeteners and baking powder to be safe.

How do I make a thicker frosting instead of a glaze?

Mix 1 ounce softened cream cheese with 1–2 tablespoons powdered keto sweetener, a splash of vanilla, and 1–2 teaspoons cream.

Spread over the warm cake.

In Conclusion

This keto cinnamon roll mug cake delivers all the warm, cozy flavors you want with none of the hassle. It’s quick, customizable, and fits a low-carb lifestyle without feeling like a compromise. Keep the dry mix ready to go, and you can have a fresh, frosted treat whenever the craving hits.

Simple, satisfying, and done in minutes—this is a keeper.