Name: Minute Keto Cinnamon Roll Mug Cake
Prep time: 2 min
Cook time: 1 min
Total time: 3 min
Cuisine: Keto
Ingredients: ¼ cup superfine almond flour; 2 tablespoons granulated erythritol (or favorite keto sweetener); ½ teaspoon baking powder; Pinch of salt; 1 large egg; 1 tablespoon unsweetened almond milk; 1 tablespoon unsalted butter, melted (or refined coconut oil); ½ teaspoon vanilla extract; 1 tablespoon unsalted butter, melted (for swirl); 1 tablespoon powdered erythritol (for swirl); ½ teaspoon ground cinnamon (for swirl); 2 tablespoons full-fat cream cheese, softened; 1 tablespoon powdered erythritol (for frosting); ½ teaspoon unsweetened almond milk (or heavy cream for frosting); ¼ teaspoon vanilla extract (for frosting)

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Warm, gooey, and ready in under two minutes, this Minute Keto Cinnamon Roll Mug Cake gives you all the cozy charm of a cinnamon roll without the fuss — and without the carbs. It’s an excellent single-serving treat when you want something sweet, fast, and low-carb; if you prefer a bigger, bakery-style keto roll, check out keto cinnamon rolls for a full-batch alternative. This friendly little mug cake hits the cinnamon, cream cheese frosting, and soft cake notes in a fraction of the time.

Why make this recipe

If you’re tired of waiting for yeast doughs and long bakes, this recipe is perfect because it turns that classic cinnamon roll craving into a 60–90 second reality. It solves the “I want something sweet right now” problem without sabotaging a low-carb day, and it’s forgiving enough for beginner cooks — no rolling pin or proofing required.

Step-by-Step Guide to Making Minute Keto Cinnamon Roll Mug Cake

Ingredients

¼ cup superfine almond flour
2 tablespoons granulated erythritol (or favorite keto sweetener)
½ teaspoon baking powder
Pinch of salt
1 large egg
1 tablespoon unsweetened almond milk
1 tablespoon unsalted butter, melted (or refined coconut oil)
½ teaspoon vanilla extract
1 tablespoon unsalted butter, melted (for swirl)
1 tablespoon powdered erythritol (for swirl)
½ teaspoon ground cinnamon (for swirl)
2 tablespoons full-fat cream cheese, softened
1 tablespoon powdered erythritol (for frosting)
½ teaspoon unsweetened almond milk (or heavy cream for frosting)
¼ teaspoon vanilla extract (for frosting)

Directions

Prepare Your Mug — Grab a microwave-safe mug (12–14 oz). Lightly grease the inside if you plan to invert the cake when it’s finished; otherwise greasing is optional but helps with release and cleanup.
Whisk the Dry Ingredients — In the mug, combine ¼ cup superfine almond flour, 2 tablespoons granulated erythritol, ½ teaspoon baking powder, and a pinch of salt. Whisk thoroughly until the mixture is evenly distributed; this step prevents clumps and gives an even rise.
Combine the Wet Ingredients — In a separate small bowl, melt 1 tablespoon unsalted butter (or use refined coconut oil). Add 1 large egg, 1 tablespoon unsweetened almond milk, and ½ teaspoon vanilla extract. Whisk until the mixture is smooth and fully combined.
Combine Wet and Dry — Pour the wet mixture into the mug with the dry ingredients. Gently stir with a fork or small whisk until just combined — you want no dry streaks, but avoid overmixing; a few tiny lumps are fine and will bake out in the microwave.
Prepare the Keto Cinnamon Swirl — In a very small bowl, combine 1 tablespoon melted unsalted butter, 1 tablespoon powdered erythritol, and ½ teaspoon ground cinnamon. Stir until you have a thick, spoonable paste — not runny, but soft enough to dollop.
Layer the Swirl — Dollop about half of the cinnamon swirl mixture over the cake batter in the mug. Using a toothpick or small knife, gently swirl it into the batter creating ribbons. Add the remaining swirl on top and repeat the gentle swirl to create distinct cinnamon ribbons through the cake.
Microwave to Perfection — Place the mug in the microwave. Cook on high for 60–90 seconds (adjust for your microwave wattage — 1000–1200 W microwaves often finish near 60–75 seconds). Start with 60 seconds and then add 10–15 second bursts until the cake is set but still slightly moist in the center. Avoid overcooking, which will make the cake dry.
Rest Time — Carefully remove the hot mug and let the cake cool in the mug for 2–3 minutes. This lets steam redistribute and the crumb set, which improves texture and helps the frosting melt just enough.
Soften Your Cream Cheese — Ensure 2 tablespoons full-fat cream cheese are softened to room temperature for a smooth frosting. If you’re in a hurry, microwave for 10–15 seconds on low power — don’t melt it.
Combine Frosting Ingredients — In a small bowl, place the softened cream cheese. Add 1 tablespoon powdered erythritol, ½ teaspoon unsweetened almond milk (or heavy cream), and ¼ teaspoon vanilla extract.
Whisk Until Smooth — Vigorously whisk the frosting ingredients until completely smooth and free of lumps. A light, creamy consistency is ideal — thin enough to drizzle but thick enough to hold its form a bit.
Frosting Time — Spoon or drizzle the prepared cream cheese frosting generously over the warm, rested mug cake. The residual warmth will slightly melt the frosting, creating a soft, gooey topping reminiscent of a cinnamon roll’s glaze.
Optional Garnish — For a finishing flourish, sprinkle a tiny pinch of ground cinnamon over the frosting to highlight the spice.
Serve Immediately — Enjoy your Minute Keto Cinnamon Roll Mug Cake warm and fresh from the microwave. Grab a spoon and dive into the ooey-gooey center.

Best Way to Store Minute Keto Cinnamon Roll Mug Cake

Room temperature: Store covered for up to 12 hours (best eaten the same day).
Refrigerator: Place in an airtight container for up to 3 days; keep the frosting on top but tightly cover to prevent drying.
Freezer: If you want to freeze portions, remove cake from mug, wrap tightly in plastic wrap and foil, and freeze for up to 1 month. Thaw overnight in the fridge and warm briefly in the microwave before serving.

Serving Suggestions for Minute Keto Cinnamon Roll Mug Cake

Because this is a single-serve treat, presentation is simple but effective. Serve it directly in the mug for casual comfort, or gently invert it onto a small dessert plate for a more refined look — if you inverted, spoon the frosting back over the top. Pair it with a small dollop of sugar-free whipped cream, a few fresh raspberries for color (if your carb allowance permits), or a shot of unsweetened almond milk on the side. For a breakfast twist, serve alongside a cup of black coffee or a creamy bulletproof coffee to complement the buttery, cinnamon notes.

tips to make Minute Keto Cinnamon Roll Mug Cake

Q: How do I keep it moist?
A: The single best trick is to stop microwaving as soon as the center is set but still slightly springy; overcooking quickly dries the almond flour cake. A 60–75 second window usually hits the sweet spot in most microwaves.

Q: Can I make this without powdered erythritol?
A: Yes — granulated erythritol works in the batter, but powdered gives the swirl and frosting a smoother texture. If you only have granulated, pulse it in a spice grinder for a finer texture.

Key tip: Use superfine almond flour if you can — it produces the lightest, most tender crumb. Regular almond meal can make the cake a bit denser, but it still tastes delicious.

variation (if any)

Dairy-Free Swap: Replace the butter with refined coconut oil and swap the cream cheese frosting for a coconut cream frosting (blend chilled coconut cream with powdered erythritol and vanilla). Texture will be slightly different, but cinnamon flavor remains strong.

Another easy swap is the sweetener: use monk fruit or a monk fruit/erythritol blend in a 1:1 replacement if you prefer a different keto sweetener profile. If you prefer a slightly more cakey texture and a lower-fat option, add a teaspoon of psyllium husk to the batter — it adds structure but may change the rise time slightly.

FAQs

Q: Can I bake this in the oven?
A: Yes. Pour the batter into a small ramekin and bake at 325°F (160°C) for about 10–15 minutes, checking frequently; the texture will be slightly more cake-like than mug-microwaved.

Q: Is almond flour necessary?
A: Almond flour lends the classic keto texture and flavor. Coconut flour is much more absorbent and requires different proportions — not a direct swap. If you want to experiment, replace almond flour with 2–3 tablespoons coconut flour and add an extra egg or two tablespoons of liquid, but expect a different texture.

Q: How many carbs per serving?
A: Exact carbs depend on the specific brands of almond flour and sweetener used, but a typical preparation with erythritol will yield approximately 3–6g net carbs per serving. Use your own ingredient labels and nutrition calculator for precise tracking.

Q: Can I double the recipe? A: You can make two mugs at once, but cook them separately or ensure even microwaving by placing them side-by-side and adding extra cook time in short increments.
Q: What if my swirl sinks to the bottom? A: That usually happens when the swirl is too runny — use powdered erythritol and a slightly thicker butter paste to help ribbons stay suspended.

Final thoughts

This Minute Keto Cinnamon Roll Mug Cake is designed as a fast, satisfying fix for cinnamon roll cravings that won’t derail your low-carb day. It’s forgiving, versatile, and ideal for single servings — whether you need a dessert, a decadent breakfast, or a late-night snack. The cream cheese frosting provides that classic cinnamon roll finish, while the almond flour base keeps it within keto guidelines. Try small swaps slowly and taste as you go to dial in texture and sweetness to your preference.

Conclusion

For additional inspiration and similar microwave mug recipes, you can compare technique and ingredient ratios with this detailed version on Keto Cinnamon Roll Mug Cake – Kirbie’s Cravings. If you’d like another quick, low-carb mug option, see the one-minute take on the cinnamon roll concept at 1 Minute Low Carb Keto Cinnamon Roll Mug Cake – Sugar-Free Mom.