Name: Funfetti Mug Cake
Prep time: 5 min
Cook time: 2 min
Total time: 7 min
Yield: 1 Serving
Cuisine: American

It is a Keeper Verified

February 18, 2026

Craving a Funfetti Mug Cake? This Funfetti recipe is sure to hit the spot. A Birthday Cake Mug Cake is so delicious, you won’t believe how easy it is to make. The Funfetti Mug Cake recipe is sure to become one of your favorite Funfetti cake recipes because you can make it whenever you want in under 10 minutes!

From the Cook

1/8

Funfetti Mug Cake

It is a Keeper Verified

Ingredients

WarningMilk and 5 other allergens identified

Instructions

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Instructions

Melt 2 tablespoons butter in your mug.

Add milk, vanilla extract, egg yolk and sugar. Use a fork to whisk ingredients until incorporated.

Add flour, baking powder and pinch of salt. Whisk again to combine.

Stir in sprinkles.

Microwave for 90 seconds on 70% or medium-high power. Cool while preparing frosting.

To prepare frosting, use a fork or an electric mixer to beat butter and powdered sugar until creamy. Add in milk, vanilla extract and a pinch of salt. Beat again until combined. Add additional milk if necessary until desired consistency is reached.

Spread or pipe frosting onto cooled mug cake. Add additional sprinkles if desired and enjoy!

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My Calorie Intake

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Tips & Tricks (5)

Sprinkle Strategy 🌈
Fold half the sprinkles into the batter and save the other half for sprinkling on top just before microwaving to create a more vibrant, festive look.
Mug Selection Matters 🍲
Choose a microwave-safe mug that's at least 12 ounces to prevent overflow and ensure even cooking of your mug cake.
Moisture Magic 💦
Add an extra tablespoon of milk if your batter seems too thick, which will help create a more tender and moist mug cake texture.
Topping Transformation 🍦
Elevate your mug cake by topping it with a scoop of vanilla ice cream, whipped cream, or a drizzle of vanilla glaze immediately after cooking.
Microwave Precision ⏱️
Microwave in 15-second intervals, checking after each interval to prevent overcooking and ensure a perfectly moist cake.

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About the Cook

It is a Keeper

Hi! I’m Christina… welcome to my kitchen! It’s so nice to meet you! I share tried and true recipes that anyone can make. I believe, if you can read, you can cook.