Soft, buttery cake meets a golden, crisp crumble in this irresistible coffee crumble cake. It’s the kind of cozy, all-day treat that feels just as right with your morning coffee as it does for dessert!

The Coziest Way to Get Your Coffee Fix!

Crumb coffee cake is one of those cakes that somehow feels suitable to indulge in any time of day. Here’s why I think you’ll also love it:

  • Perfect with coffee or tea, whether you’re celebrating a birthday breakfast, catching up with friends, or serving it for dessert
  • The generous crumble topping adds a delicious crunch and rich flavor to every slice
  • Easily customize this cake by adding spices, oatmeal, or nuts to the batter or topping

Recipe Ingredients

This coffee crumble cake checks all the right boxes. Even better, it calls for simple pantry staples that you likely already have. Be sure to check out the recipe card below for full details:

  • unsalted butter – soften for easy creaming with the sugar. I prefer unsalted butter for better control of the salt content in my baked goods
  • granulated sugar
  • vanilla extract – try this easy 2-ingredient homemade vanilla extract when making this moist vanilla cake base
  • eggs – bring to room temperature for easy mixing
  • self-rising flour – this flour already contains baking powder, so your cake rises without needing to add separate leavening. This helps create a light, airy crumb
  • salt – enhances the flavors of the cake
  • instant coffee powder – I prefer a subtle coffee flavor in my baked goods, but you may want to taste the batter and increase it for a more prominent flavor. Keep in mind that the coffee flavor will fade slightly in the oven
  • crumble – similar to this homemade shortcrust pastry recipe, this crumble topping combines butter, sugar, flour, and salt. The coffee flavor of this delicious cake is carried through to the crumble topping by the addition of instant coffee powder

What is a coffee cake?

“Coffee cake” gets its name not (only) from its ingredients, but from how it’s served. This lightly sweet, crumble-topped treat was created as a social snack to enjoy alongside a cup of coffee.

It’s believed to have originated in Europe, with the tradition carried over to various parts of the world. The name has stuck, even though the classic coffee cake contains no coffee at all.

As you can tell, I have included coffee in this coffee cake recipe. The flavor is delicious but not overpowering. Perfect for coffee and non-coffee lovers alike.

Coffee crumble cake-2

How To Make Coffee Breakfast Cake

Start by creaming the sugar and butter. Add the eggs and extract and mix until combined.

Mix in the dry ingredients (flour, salt, and instant coffee powder). Don’t overmix the batter as this can result in an overly dense cake.

Pour the batter into a parchment-lined baking pan and spread evenly so that you don’t get any underbaked spots in the cake.

Now for the crumble topping. Add all of the ingredients in a bowl and use your hands to work it into a crumbly dough.

Sprinkle the crumbs over the cake and bake for 25 minutes at 320°F/160°C (conventional oven) until cooked through and golden brown.

BAKING TIP: I love to use a 20×20 cm/8×8-inch square cake pan for this coffee crumb cake to create uniform cake squares. Leave some parchment paper overhang on either sides as a simple way to remove the baked cake from the pan for cutting.

Storing Coffee Crumble Cake

Wrap leftover coffee crumble cake in aluminum foil and store in an airtight container at room temperature for up to 4-5 days.

Can I freeze coffee crumble cake?

Absolutely! Wrap individual slices of the cake with foil and plastic wrap. Transfer the cake slices to a freezer-safe bag or airtight container and freeze for up to 3 months.

Thaw the exact number of cake slices you desire at room temperature when ready to enjoy again.

Reheating

While leftover coffee crumble cake is delicious at room temperature, you can heat it in the oven for a few minutes to warm it through and to regain some crispy texture.

More Crumble Baked Treats

If you love the contrast of soft, moist cake and a crisp, buttery crumb topping, you’ll want to try these irresistible crumble-inspired treats too:

FAQ Coffee Crumble Cake

How do I stop the crumble topping from sinking into the batter or melting while baking?

To prevent the crumble topping from sinking into the batter, chill the batter in the fridge for a short time. This is particularly helpful if you have a warm kitchen.

For a crisp crumble that won’t melt while baking, make sure that the butter isn’t too warm when mixing it with the rest of the crumble ingredients.

Can I add oatmeal to the crumble topping?

Absolutely! Oatmeal not only gives extra flavor to the crumble topping, but also an extra tasty texture. Make sure to reduce the amount of flour when adding oatmeal to prevent an overly dry crumble topping. For example, you could add 40 grams of oatmeal and reduce the all-purpose flour to an equal amount of 40 grams.

Is the coffee flavor strong in this crumble cake recipe?

No, not at all. The coffee flavor, while present in both the cake batter and crumble topping, fades as the cake bakes in the oven. It’s a lovely subtle flavor which you can intensify with additional instant coffee powder, if you like.

Can I use brown sugar to make the crumble?

Yes, brown sugar works too. Keep in mind that brown sugar adds more moisture which will result in a softer crumble texture while white sugar will provide a more crispy texture.

I don't like coffee! What else can I use?

Feel free to leave the instant coffee powder out and add cinnamon powder into the batter and crumble for a touch of warmth.

Will this recipe work in a round springform pan?

It depends on the size of the round springform pan. I recommend a round 24 cm/9-inch springform pan. You will not need to adjust the bake time.

 

Coffee crumble cake

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Coffee Crumble Cake

This cake is guaranteed to delight every coffee lover! A soft, moist coffee cake topped with a golden crumble for the coziest treat.
Preparation15 minutes
Cooking25 minutes
Total40 minutes
Servings: 16 people

Ingredients 

Cake batter

  • 100 grams unsalted butter
  • 100 grams granulated sugar
  • 1 tsp vanilla extract
  • 2 eggs
  • 100 grams self-rising flour
  • pinch of salt
  • 1 1/2 tsp instant coffee powder

Crumb topping

  • 60 grams unsalted butter
  • 80 grams granulated sugar
  • 80 grams all-purpose flour
  • pinch of salt
  • 1 tsp instant coffee powder

Equipment

  • 8 x 8 inch (20 x 20 cm) square pan

Instructions

  • Cream the butter and sugar together until light and fluffy. Add the eggs and vanilla extract and mix until fully incorporated.
  • Add the self-rising flour, salt, and instant coffee powder. Mix until combined.
  • Pour the batter into a parchment-lined baking pan and spread it evenly.
  • For the crumb topping, combine all ingredients in a bowl and use your hands to work it into a crumbly dough. Sprinkle the crumbs over the batter.
  • Bake for about 25 minutes at 320°F/160°C (conventional oven) until cooked through and golden brown.
How to store

Store well covered at room temperature for 4-5 days. You can also freeze this cake for up to 3 months and thaw before serving.

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