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Gooey chocolate S’more Mug Cake with melted marshmallows and cookie crumbs

How to Make a S more Mug Cake in Minutes

A warm, gooey S’more Mug Cake made with chocolate, marshmallows, and cookie crumbs — ready in just 7 minutes for the perfect cozy dessert.

  • Total Time: 7 minutes
  • Yield: 1 serving

Ingredients

Scale

3 tbsp all-purpose flour

3 tbsp brown sugar

3 tbsp cocoa powder

3 tbsp oil (canola, coconut, or sunflower)

3 tbsp water

Pinch of salt

½ tsp vanilla extract

2 tbsp cookie crumbs (graham or digestive)

3 marshmallows

Instructions

1. In a microwave-safe mug, mix flour, brown sugar, cocoa powder, and salt.

2. Add oil, water, and vanilla; stir until smooth and glossy.

3. Fold in cookie crumbs for extra crunch.

4. Microwave on high for 45–60 seconds (depending on microwave wattage).

5. Top with marshmallows and microwave 20 seconds more until puffy.

6. Cool for 1–2 minutes, then enjoy warm with ice cream or whipped cream.

Notes

Microwave times may vary — start with less time and add as needed.

Use a wide 6–8 oz mug to avoid overflow.

For a richer flavor, stir in chocolate chips before cooking.

To make it dairy-free, use vegan marshmallows and plant-based oil.

  • Author: Rita
  • Prep Time: 5 minutes
  • Cook Time: 2 minutes
  • Category: Chocolate Mug Cakes
  • Method: Microwave
  • Cuisine: American
  • Diet: Vegetarian