Microwave Keto Cinnamon Almond Mug Cake

By AislePrompt Editorial · Published 2026-05-24 · Updated 2026-05-24

A fluffy and fragrant almond flour mug cake infused with cinnamon, ready in under 5 minutes for a warm, guilt-free keto dessert. This keto recipe (low carb), ready in about 5 minutes, layers almond flour, baking powder, erythritol sweetener into a dessert worth slowing down for — great for weekend baking, holiday tables, or any time you want a sweet payoff at the end of a meal. Each serving lands at about 280 calories and feeds 1, so it slots into a weekend bake or a special-occasion dessert tray. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Ingredients

• 3 tbsp almond flour
• 1/4 tsp baking powder
• 1 tbsp erythritol sweetener
• 1/2 tsp ground cinnamon
• 1 large egg
• 2 tbsp unsweetened almond milk
• 1/4 tsp vanilla extract
• 1 tbsp butter (melted)

The bakeware we’d bake this in → Best Bakeware Sets in 2026: Top Picks + Buying Guide

Instructions

1. Step 1: In a microwave-safe mug, whisk together 3 tbsp almond flour, 1/4 tsp baking powder, 1 tbsp erythritol sweetener, and 1/2 tsp ground cinnamon until evenly distributed.
2. Step 2: Add 1 large egg, 2 tbsp unsweetened almond milk, 1/4 tsp vanilla extract, and 1 tbsp melted butter to the dry ingredients in the mug. Whisk thoroughly until the batter is smooth and free of lumps.
3. Step 3: Microwave on high power for 90 seconds to 2 minutes, checking after 90 seconds. The cake should rise and be set but still moist in the center.
4. Step 4: Let the mug cake cool for 2 minutes before enjoying directly from the mug or turning out onto a plate.