Instant Coffee Chocolate Mug Cake

By AislePrompt Editorial · Published 2026-04-25 · Updated 2026-04-25

A swift and indulgent chocolate mug cake enriched with instant coffee for a subtle espresso kick, perfect for a quick dessert fix. This American-inspired Instant Pot recipe, ready in about 7 minutes, layers all-purpose flour, granulated sugar, unsweetened cocoa powder 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 320 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

• 4 tbsp all-purpose flour
• 3 tbsp granulated sugar
• 2 tbsp unsweetened cocoa powder
• 1 tsp instant coffee granules
• 1/4 tsp baking powder
• a pinch salt
• 3 tbsp milk
• 2 tbsp vegetable oil
• 1/2 tsp vanilla extract

The coffee makers we’d brew this with → Best Coffee Makers in 2026: Top Picks + Buying Guide

Instructions

1. Step 1: In a microwave-safe mug, whisk together 4 tbsp all-purpose flour, 3 tbsp granulated sugar, 2 tbsp unsweetened cocoa powder, 1 tsp instant coffee granules, 1/4 tsp baking powder, and a pinch of salt until evenly combined.
2. Step 2: Add 3 tbsp milk, 2 tbsp vegetable oil, and 1/2 tsp vanilla extract to the dry ingredients. Stir thoroughly until you get a smooth batter with no lumps.
3. Step 3: Microwave the mug on high power for 90 seconds. Check the cake's doneness by inserting a toothpick into the center; it should come out clean or with a few moist crumbs.
4. Step 4: Let the cake cool for 2 minutes before enjoying directly from the mug.