Chocolate Peanut Butter Swirl Mug Cake
A rich, fudgy chocolate mug cake with a creamy peanut butter swirl that melts right into the warm batter. Soft, moist, and ready in just minutes — perfect for late-night cravings, busy days, or anytime you want a single-serve treat with zero fuss.
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Ingredients
Dry Ingredients
all-purpose flour4tbsp
sugar2tbsp
cocoa powder2tbsp
baking powder1/4tsp
salt1pinch
Wet Ingredients
melted butter1tbsp
neutral oil (sunflower/canola)1/2tbsp
milk3tbsp
yogurt (or cream for extra richness)1tbsp
vanilla extract1/2tsp
Peanut Butter Swirl
smooth peanut butter (warm it slightly so it swirls easily)1tbsp
Optional Toppings
cream cheese frosting1dash
chocolate chips1dash
peanut butter drizzle1dash
whipped cream1dash
Nutrition (per serving)
Calories
380.0kcal (19%)
Protein
6.5g (13%)
Carbs
42.0g (15.27%)
Sugars
20.0g (40%)
Healthy Fat
10.1g
Unhealthy Fat
8.0g
% Daily Value based on a 2000 calorie diet
How to make Chocolate Peanut Butter Swirl Mug Cake
Mix Dry Ingredients
- Step 1
Add flour, sugar, cocoa powder, baking powder, and salt to a microwave-safe mug. Mix well.
Add Wet Ingredients
- Step 1
Pour in melted butter, oil, milk, yogurt, and vanilla. Stir until the batter is smooth and lump-free.
Add Peanut Butter Swirl
- Step 1
Drop in a spoonful of warm peanut butter and swirl it through the batter with a spoon or toothpick.
Microwave
- Step 1
Cook for 75–90 seconds depending on microwave power. The cake should rise and look soft but set on top.
Cool Slightly
- Step 1
Let the mug cake rest for 1 minute — it finishes cooking as it cools.
Top & Serve
- Step 1
Add frosting, chocolate chips, a peanut butter drizzle, or whipped cream for extra indulgence.
Nutrition (per serving)
Nutrition (per serving)
Calories
380.0kcal (19%)
Protein
6.5g (13%)
Carbs
42.0g (15.27%)
Sugars
20.0g (40%)
Healthy Fat
10.1g
Unhealthy Fat
8.0g
% Daily Value based on a 2000 calorie diet
Tips & Tricks
Add chocolate chips for a molten center.
Use crunchy peanut butter for texture.
Add a pinch of instant coffee for deeper chocolate flavor.
Use cream instead of yogurt for extra richness.
FAQS
Can I use crunchy peanut butter?
Yes, crunchy peanut butter can be used for added texture.
How do I prevent the cake from turning rubbery?
Avoid overcooking. Start with 75 seconds and add 5–10 seconds if needed.
Can I make this vegan?
Yes, use dairy-free milk, vegan butter, and dairy-free yogurt to make it vegan.
What toppings go well with this mug cake?
Vanilla ice cream, whipped cream, chocolate chips, or a peanut butter drizzle are great options.
Can I double the recipe?
Yes, double the ingredients and cook each mug separately.
Rajani
(@thegourmetschoice)
I’m Rajani, a passionate cook with over 15 years of experience creating delicious, approachable dishes. My love for food began in childhood, inspired by watching Sanjeev Kapoor’s Khana Khazana with my mom and helping her in the kitchen. On The Gourmet’s Hut, I share tried-and-tested authentic Indian recipes and quick microwave mug cake recipes perfect for busy days. My goal is to make cooking simple, flavorful, and fun—because food brings people together and every meal should create memories.
...Marnirni-apinthi Building, Lot Fourteen,
North Terrace, Adelaide, South Australia, 5000
Australia