Oreo Mug Chocolate Cake

Featured in: Simple Sweet Treats

This rich and fudgy single-serve chocolate cake uses crushed Oreo cookies mixed with milk to create a thick batter cooked quickly in a microwave-safe mug. Optional ingredients like baking powder, sugar, and chocolate chips boost texture and sweetness. After microwaving for just over a minute, the cake sets moist and soft, perfect for an instant indulgent dessert. Toppings like whipped cream or chocolate syrup enhance its flavor and presentation. Ideal for a quick and easy sweet treat with minimal prep and cleanup.

Updated on Tue, 23 Dec 2025 08:48:00 GMT
Warm, freshly made Oreo Mug Cake, perfect for a quick and satisfying dessert craving. Save
Warm, freshly made Oreo Mug Cake, perfect for a quick and satisfying dessert craving. | olivebriar.com

I had one of those nights at 11 PM where the kitchen felt too far away but the sweet tooth craving wouldn't quit. My roommate walked in holding a mug and told me I needed to see what happened when you crushed Oreos into paste. Five minutes later I was sitting on the counter watching this ridiculous simple cake puff up in the microwave like magic. Now it's the kind of emergency dessert I can make with my eyes closed.

Last winter my cousin stayed over and we ended up making six of these in a row testing every combination we could think of. Peanut butter Oreos became an obsession. There's something so satisfying about crushing cookies into batter and watching it transform in the microwave. The whole house smelled like chocolate and we stayed up way too late eating warm cake straight from mugs.

Ingredients

  • 4 Oreo cookies: These create the perfect chocolate base since they're already designed to be eaten with milk
  • 3 tablespoons milk: Whole milk gives the richest result but any milk works perfectly fine
  • 1/4 teaspoon baking powder: This tiny pinch makes a huge difference in texture
  • 1 teaspoon sugar: Only if you want it sweeter which sometimes you absolutely do
  • 1 tablespoon chocolate chips: They melt into little puddles of gooey perfection

Instructions

Crush those cookies:
Place the Oreos in a microwave safe mug and crush them with a fork until they're fine crumbs
Add the milk:
Pour in the milk and stir until you have a smooth thick batter
Boost the batter:
Stir in baking powder and sugar if you're using them
Add extras:
Fold in chocolate chips if you want those gooey pockets
Magic time:
Microwave on high for 1 to 1.5 minutes until risen and set but still slightly moist in the center
Patience pays:
Let it cool for 1 minute then add whatever toppings make you happy
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This became my go to during finals week when I needed something warm and fast. My friends would text me from their dorms asking if I was making mug cakes again. There's something so comforting about having a freshly baked chocolate cake in minutes.

Making It Your Own

The beauty of this recipe is how easily it adapts to whatever you're craving. Different cookie flavors change everything. Mint Oreos make it taste like thin mint pie. Peanut butter Oreos create this nutty richness. Double Stuf gives you an even creamier texture. I've even used golden Oreos for a vanilla version that's surprisingly good.

Topping Ideas

Sometimes I go all out and sometimes I keep it simple. A scoop of vanilla ice cream melting over the warm cake is pretty hard to beat. Peanut butter drizzled on top creates this salty sweet situation. Nutella heats up beautifully and gets all gooey. Even just a dusting of powdered sugar makes it feel fancy.

Common Mistakes

The biggest error I see people make is not crushing the cookies finely enough. You want actual crumbs not chunks. Also don't use a huge mug or the batter spreads too thin and cooks unevenly. And please trust me on the cooking time.

  • Check at 1 minute even if it looks underdone
  • Use a standard sized mug not a bowl
  • Crush the cookies into fine crumbs
A steaming mug of Oreo Mug Cake, with optional chocolate chips, enticingly ready to eat. Pin it
A steaming mug of Oreo Mug Cake, with optional chocolate chips, enticingly ready to eat. | olivebriar.com

Hope this brings you as many midnight moments of joy as it has me.

Frequently Asked Questions

Can I use plant-based milk instead of dairy milk?

Yes, plant-based milk works well and helps create a vegan-friendly version when paired with appropriate cookies.

How do I ensure the cake is fluffy and not dense?

Adding a small amount of baking powder lightens the texture, making the cake fluffier.

Is it necessary to crush the Oreos finely?

Finely crushing the Oreos ensures a smooth batter and even cooking in the microwave.

Can I add extra sweetness to the cake?

Yes, stirring in some sugar before cooking can enhance the sweetness if desired.

How long should I microwave the cake?

Microwave for 1 to 1.5 minutes, adjusting based on your microwave’s power to avoid overcooking.

Oreo Mug Chocolate Cake

Rich, fudgy chocolate treat made with Oreo crumbs and milk, ready in minutes using a microwave.

Prep Time
3 Minutes
Cook Time
2 Minutes
Total Time
5 Minutes


Difficulty: Easy

Cuisine: American

Yield: 1 servings

Dietary: Vegetarian

Ingredients

Base

01 4 Oreo cookies
02 3 tablespoons milk (whole, 2%, or plant-based)

Optional Add-Ins

01 1/4 teaspoon baking powder
02 1 teaspoon sugar
03 1 tablespoon chocolate chips

Topping (optional)

01 Whipped cream, chocolate syrup, or extra crushed Oreos

Instructions

Step 01

Crush Oreos: Place Oreo cookies in a microwave-safe mug and crush thoroughly with a fork or spoon until fine crumbs form.

Step 02

Mix Batter: Add milk to the mug and stir until a smooth, thick batter forms.

Step 03

Incorporate Optional Ingredients: If desired, stir in baking powder and sugar for added fluffiness and sweetness, then fold in chocolate chips for extra richness.

Step 04

Microwave Cake: Microwave on high for 1 to 1.5 minutes until the cake has risen and set but remains slightly moist inside; cooking time may vary by microwave wattage.

Step 05

Cool and Serve: Allow the cake to cool for 1 minute before serving; garnish with whipped cream, chocolate syrup, or crushed Oreos as desired.

Tools You'll Need

  • Microwave-safe mug
  • Fork or spoon

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Contains wheat (gluten), milk, soy; may contain traces of nuts.

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 230
  • Total Fat: 9 g
  • Total Carbohydrate: 36 g
  • Protein: 3 g