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If you’re craving a warm, comforting dessert that feels like fall in a mug, this Apple Crumble Mug Cake is just the treat you need. Ready in just minutes, this single-serve delight brings together soft cinnamon-spiced apple cake and a buttery, sweet crumble topping—no oven required! It’s perfect for those moments when you want homemade dessert without the hassle.

A white mug filled with apple crumble sits on a beige cloth, with a green apple and a green container labeled "YUM" in the background.

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Why You’ll Love This Recipe

Quick and Easy: Made in under 10 minutes with simple pantry staples.
No Baking Skills Needed: Just mix, microwave, and enjoy!
Cozy Flavors: Warm cinnamon, tender apples, and a buttery crumble topping—what’s not to love?
Small Batch: Perfect for when you want dessert without leftovers (or sharing!).
Customizable: Swap apples for pears, add a dash of nutmeg, or top with whipped cream or vanilla ice cream.

Ingredients

Each ingredient plays a simple but important role, working together to create a cozy, comforting treat that feels like it came straight from grandma’s kitchen—only faster!

All-Purpose Flour – This is the base of your mug cake, providing structure and helping the cake rise and hold its shape. It is also used for the crumble topping.
Brown Sugar – Adds sweetness with a hint of molasses flavor, which pairs perfectly with the cinnamon and apples for that warm, caramelized taste.
Baking Powder -A leavening agent that gives the cake its soft, fluffy texture by helping it rise during microwaving.
Ground Cinnamon – Brings cozy, aromatic warmth that enhances the flavor of the apples and gives the cake that classic apple pie spice vibe.
Milk – Provides moisture to the batter and helps bind the dry ingredients for a smooth, tender cake.
Melted Butter – Adds richness and flavor while keeping the cake moist and soft.
Vanilla Extract -Enhances the overall flavor with a subtle sweetness and depth that complements the cinnamon and apple.
Apple – The star of the show! These fresh apple pieces become tender and juicy as they cook, adding natural sweetness and texture to the cake.

How To Make Apple Crumble Mug Cake

The crumble topping is made in a separate bowl then added to the cake in the mug.

A white bowl containing flour, brown sugar, cinnamon, melted butter, and other baking ingredients on a speckled countertop.

Mix the dry ingredients in a mug.

A white bowl containing a mixture of beaten egg and flour sits on a speckled countertop.

Add the wet ingredients and mix to form a batter.

A white mug containing a mixture with chopped green apple pieces on top, placed on a speckled countertop.

Fold in the apple pieces.

A white mug on a light countertop contains a single-serving dessert with a crumbly topping, resembling a mug cake or fruit crumble.

Top with crumble then cook.

Recipe Tips

Use a microwave-safe mug that holds at least 10 oz to prevent overflow.

Finely chop the apple so it softens properly during cooking.

Adjust the microwave time based on your appliance. Start with 1 minute and check; add an extra 10–15 seconds if needed.

Don’t overmix the batter—just stir until combined for a fluffy texture.

Let it cool for a minute before digging in; it’ll continue to cook slightly and the crumble will firm up.

Serving Suggestions

Here are some tasty ideas for what to serve with your Apple Crumble Mug Cake to take it to the next level:

Vanilla Ice Cream – The classic! Melts into the warm cake and adds creamy sweetness.
Whipped Cream – Light and airy, it’s a quick and easy way to add richness.
Caramel Sauce – A drizzle of warm caramel adds that gooey, buttery finish.
Greek Yogurt – A healthier option with a tangy twist that balances the sweetness.
Chopped Nuts – Sprinkle toasted pecans or walnuts for added crunch and flavor.
Maple Syrup – Just a light drizzle adds depth and natural sweetness.
Cinnamon Sugar Dusting – For an extra cozy touch.

A cup of apple crumble mug cake topped with a scoop of vanilla ice cream, a spoonful being lifted, with a green apple and vibrant green drink in the background.

More Mug Cake Recipes

Funfetti Cake Mix Mug Cake

Chocolate Raspberry Mug Cake

Banana Nutella Mug Cake