- 1 tbsp unsalted butter melted
- 1 large egg
- 3 tbsp superfine almond flour
- 1/2 tsp baking powder
- 1 tbsp erythritol sweetener granular
- 1/2 tsp vanilla
- 1/2 tsp cinnamon
Cinnamon Sugar Topping (makes enough for 2 cakes)
- 1/8 tsp ground cinnamon
- 3/4 tsp brown sugar alternative
Cream Cheese Frosting (makes enough for 2 cakes)
- 1/2 tbsp unsalted butter softened
- 1 tbsp cream cheese softened
- 1 tbsp powdered erythritol
In a microwave-safe mug (that can hold at least 8 oz of liquid), add all cake ingredients. Mix with a small whisk until batter is smooth.
In a small bowl, add topping ingredients. Whisk until evenly blended. Sprinkle half of it over surface of cake. Save remaining for another cake.
Cook cake in microwave at full power for about 1 minute and 15 seconds to 1 minute and 30 seconds. Be careful to not overcook the cake because that will cause the cake to be dry when it cools.
While cake is cooling, add butter and cream cheese to a small microwave-safe bowl. Place a paper towel over bowl and heat briefly for about 8-10 seconds. Be careful to not heat too long because the cheese will start to pop.
Whisk butter and cream cheese until smooth. Gradually add in powdered sweetener, 1/2 tbsp at a time and whisking after each addition. Add enough powdered sweetener to sweeten and thicken the frosting. I used 1 tbsp but you can add a little more if needed.
Place frosting into a piping back (or use a ziploc bag and cut a small hold at one corner). Pipe a swirl over the still warm cake. You should have enough frosting leftover for a second cake. Cake is best enjoyed warm.
- I use an 1100 watt microwave. You may need to adjust time and/or power if you are using a different wattage.
- I recommend using powdered erythritol* for the cream cheese frosting. It easily melts into the frosting.
- I used Kirkland Signature superfine almond flour.*
- I used Erythritol Sweetener Granular* for the cake batter.
- I used Sukrin Gold brown sugar alternative* for the cinnamon sugar topping. You can also substitute with erythritol granular.
- There is enough cinnamon sugar topping and frosting for two cakes. It was difficult to do a smaller portion. You can either make two cakes or save half of each for a future cake.
- If you decide to make two cakes, make sure you cook them individually in the microwave.
- *Some of the product links contained in this post are affiliate links. Much like referral codes, this means I earn a small commission if you purchase a product I referred (at no extra charge to you).
- Estimated Nutrition Information does not include carbs from sugar alcohols