Quick Cinnamon Apple Crisp in a Mug

By AislePrompt Editorial · Published 2026-05-03 · Updated 2026-05-03

This speedy single-serving apple crisp is made in the microwave with cinnamon-spiced apples and a crunchy oat topping. This American-inspired recipe, ready in about 8 minutes, layers apple, peeled and diced, brown sugar, old-fashioned rolled oats 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

• 1 medium (about 1 cup) apple, peeled and diced
• 2 tbsp brown sugar
• 3 tbsp old-fashioned rolled oats
• 2 tbsp all-purpose flour
• 2 tbsp unsalted butter, melted
• 1 tsp ground cinnamon
• 1 scoop vanilla ice cream (optional)

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Instructions

1. Step 1: In a microwave-safe mug, combine 1 cup peeled and diced apple, 1 tsp ground cinnamon, and 1 tbsp brown sugar; stir to coat the apple pieces evenly.
2. Step 2: In a small bowl, mix 3 tbsp old-fashioned rolled oats, 2 tbsp all-purpose flour, 1 tbsp brown sugar, and 2 tbsp melted unsalted butter until crumbly.
3. Step 3: Sprinkle the oat topping evenly over the cinnamon apples in the mug.
4. Step 4: Microwave on high for 2-3 minutes until the apples are soft and the topping is set and slightly golden.
5. Step 5: Let cool for 1 minute before serving. Optionally, top with 1 scoop vanilla ice cream for extra indulgence.