Keto Peanut Butter Mug Cake

Name: Keto Peanut Butter Mug Cake
Prep time: 5 min
Cook time: 5 min
Total time: 10 min
Yield: 1 servings
Cuisine: American
Ingredients: 3 tbsp natural peanut butter (no added sugar); 1 large egg, beaten; 2 tbsp granulated erythritol (or monk fruit sweetener); 1/4 tsp baking powder; 1/4 tsp vanilla extract; pinch salt; 1 tsp unsalted butter

A single-serving flourless peanut butter cake made in a mug on the stovetop or microwave, sweetened with erythritol for an indulgent keto dessert ready in minutes.

10 minEasyServes 1290 cal/serving

AmericanDessertStovetopKetoLow CarbGluten-FreeSoy-FreeSesame-FreeLow-SodiumPork-FreeNightshade-Free

Ingredients

3 tbsp natural peanut butter (no added sugar)
1 large egg, beaten
2 tbsp granulated erythritol (or monk fruit sweetener)
1/4 tsp baking powder
1/4 tsp vanilla extract
pinch salt
1 tsp unsalted butter

Instructions

1

Grease a small oven-safe ramekin or microwave-safe mug with 1 tsp unsalted butter.
2

In a small bowl, stir together 3 tbsp natural peanut butter (no added sugar), 1 beaten large egg, 2 tbsp granulated erythritol (or monk fruit sweetener), 1/4 tsp baking powder, 1/4 tsp vanilla extract, and pinch salt until smooth.
3

Pour the batter into the prepared mug.
4

Stovetop method: place the mug in a small saucepan with 1 inch of water, cover with a lid, and steam over medium heat for 4-5 minutes until the top is just set. Alternatively, microwave on high for 60-90 seconds, checking at 60 seconds.
5

Let cool for 1 minute before eating. The cake will be moist and fudgy. Serve warm directly in the mug.

Questions

Can I make Keto Peanut Butter Mug Cake dairy-free?

Yes. The dairy in this entry is 1 tsp unsalted butter. Swap the butter for olive oil where it melts, or a plant-based block butter where it is creamed. The richness shifts slightly, but the method does not change.

How long does Keto Peanut Butter Mug Cake keep?

Keep it covered in the refrigerator and eat it within three days.

Can I halve or double Keto Peanut Butter Mug Cake?

Yes. As written it serves 1. Every ingredient in this entry carries precomputed half and double quantities, and the app's batch dial rewrites them inside each step. When doubling on the stovetop, use your widest pan or work in two batches so the food sears instead of steaming.

Serve it with

Shirley Temple drink
Classic Old Fashioned drink
Almond Milk and Orange Blossom Sharbat drink

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