Quick Microwave Chocolate Mug Cake Recipe in 2 Minutes

Sometimes you want chocolate cake without the time and effort of baking a full cake. This microwave chocolate cake is a quick, fudgy single-serving dessert that’s ready in around five minutes. It’s perfect when you need a small chocolate fix with no fuss.

Want more single-serving desserts? Try the microwave chocolate chip cookie, apple crisp for one, or the single-serving triple berry cobbler.

Microwave chocolate cake made in small bowl with chocolate chips and whipped cream on top with a spoonful taken out.

Why You’ll Love This Recipe

This single-serving chocolate cake recipe was refined over time to balance sweetness and texture. The result is a cake that’s moist, tender, and fudgy with minimal effort.

Highlights:

  • Single Serving – No leftovers, just enough to satisfy a craving.
  • Fast – From mixing to eating in under five minutes.
  • Easy Cleanup – Mix and microwave in a mug or ramekin.
  • Flexible – Top with chocolate chips, ice cream, peanut butter, or fresh berries.
Microwave chocolate cake in a ramekin with mini chocolate chips and whipped cream on top.

Ingredients You’ll Need

Note: Full ingredient amounts and the printable recipe are in the recipe card below.

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Ingredients to make microwave chocolate cake in a mug or ramekin.

This easy chocolate cake for one uses pantry basics:

  • All-purpose flour
  • Granulated sugar
  • Cocoa powder (natural or Dutch-process)
  • Baking powder
  • Salt
  • Neutral oil (canola, vegetable, or melted coconut oil)
  • Milk (dairy or non-dairy)
  • Hot water to dissolve and bloom the cocoa
  • Mini or regular chocolate chips (optional)

How to Make a Microwave Chocolate Cake

Steps to make microwave chocolate cake for one.
  1. Combine flour, sugar, cocoa, baking powder, and salt in a microwave-safe ramekin or mug.
  2. Stir with a fork until evenly mixed.
  3. Add oil and milk; stir until just combined.
  4. Pour in the hot water and stir until the batter is smooth. It will be thin but uniform in texture.
  5. Microwave 35–40 seconds, depending on your microwave. The cake should rise and the top appear just set. The center may look slightly wet—that’s fine since it will finish setting off heat. If desired, top with chocolate chips immediately and let rest one minute before serving.
Top view of a microwave chocolate cake win a ramekin with chocolate chips on top.

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Toppings and Customizations

  • Sprinkle with mini or regular chocolate chips
  • Swirl in a spoonful of slightly melted peanut butter or Nutella for a molten center
  • Top with a scoop of ice cream or a dollop of whipped cream
  • Add fresh berries for bright, tart contrast
Single serving chocolate cake in a ramekin with mini chocolate chips and whipped on top.

Recipe Notes

Tips for the best microwave chocolate cake

  • Avoid overcooking: The cake should be moist and tender, not dry. Microwaves differ—start with 30 seconds and add 5-second intervals until done. A 1200W microwave usually needs about 35 seconds for a fudgy texture and about 40 seconds for a slightly fluffier cake.
  • Ramekin vs mug: A 4×2-inch (6oz) ramekin gives an even, wide surface and is ideal. An 8oz mug works too but the batter will fill less of the mug. If doubling the recipe, use separate containers for even cooking.

The Ultimate Chocolate Cake for One

When a chocolate craving hits, this microwave cake delivers a warm, gooey treat in minutes. It’s perfect for a solo dessert, late-night snack, or quick sweet fix without the commitment of a full cake.

Enjoy it plain or dress it up with your favorite toppings for a personalized single-serving dessert.

Single serving chocolate cake in a ramekin with mini chocolate chips and whipped on top.

FAQs

Can I use a mug instead of a ramekin?

Yes. An 8oz mug works well in place of a ramekin.

Is this recipe egg-free?

Yes. The recipe contains no eggs, which helps keep the texture soft and prevents rubberiness.

How do I know when it’s done?

The top should look set but still slightly moist. If the center is too gooey, microwave in 5-second intervals until it’s set to your preference.

Why did my mug cake turn out dry?

Overcooking is the most common cause. Start with a shorter time and add a few seconds as needed to avoid drying it out.

Can I double the recipe?

You can double it, but it’s best to make two separate servings so each cooks evenly.

Can I use butter instead of oil?

Yes. Melted butter works, though it may affect cooking time slightly—watch closely to avoid overcooking.

Microwave chocolate cake made in small bowl with chocolate chips and whipped cream on top with a spoonful taken out.

Microwave Chocolate Cake

Prep: 4 mins
Cook: 1 min
Total: 5 mins
Make a fudgy single-serving microwave chocolate cake in a mug or ramekin in just five minutes—perfect for when you want chocolate now.

Ingredients

  • 2 Tbsp (16 g) all-purpose flour
  • 2 Tbsp (25 g) granulated sugar
  • 1 Tbsp (5 g) cocoa powder
  • 1/8 tsp baking powder
  • 1/16 tsp salt
  • 1 Tbsp (15 ml) oil (canola or vegetable)
  • 1 Tbsp (15 ml) milk (any)
  • 1 Tbsp (15 ml) hot water
  • 1 tsp (5 g) mini chocolate chips (optional)

Instructions

 

  • Place flour, sugar, cocoa, baking powder, and salt in a microwave-safe ramekin or mug. Stir well with a fork.
  • Add oil and milk and stir until just combined.
  • Add hot water and stir until the batter is uniform. It will be thin but should have no watery spots.
  • Microwave 35–40 seconds depending on your microwave until the top is just set. If desired, add chocolate chips immediately and let rest one minute before serving.

Notes

  • Don’t Overcook: Start with 30 seconds and add 5-second intervals until done. A 1200W microwave typically needs 35 seconds for fudgy and 40 seconds for slightly fluffier texture.
  • Ramekin vs Mug: A 6oz ramekin is preferred for even cooking; an 8oz mug will work but will be less filled.

Toppings and Customizations:

  • Chocolate chips (mini or regular)
  • Swirl in peanut butter or Nutella for a molten center
  • Top with ice cream or whipped cream
  • Add fresh berries for contrast

Nutrition

Serving: 1 |
Calories: 316 kcal |
Carbohydrates: 42 g |
Protein: 3 g |
Fat: 17 g

Disclaimer: Nutritional values are estimates calculated using a third-party tool.

*Originally published on 8/20/2013. Recipe and photos updated August 2025.

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