Coffee Cake with Buttercream Frosting

This soft coffee cake with coffee frosting is a delightful dessert with a tender crumb and rich coffee flavor, perfect for coffee lovers seeking an easy yet elegant treat. It combines moist cake layers infused with instant coffee and a creamy coffee buttercream, offering a harmonious balance of sweetness and bitterness. Great for afternoon tea or a special occasion, this cake is straightforward to make and can easily become a family favorite. While indulgent, it’s best enjoyed in moderation due to its sugar and butter content. For those who enjoy creative desserts, this recipe pairs well with other no-bake sweets like the no-bake ice cream cake, adding variety to your dessert collection.

Why This Recipe Is Helpful

• Uses common ingredients with clear steps suitable for bakers of all levels
• Combines coffee flavor directly into both cake and frosting for depth
• Moist texture and creamy frosting provide a satisfying eating experience without complexity

Best For

This recipe is ideal for anyone who enjoys the aroma and taste of coffee in their baked goods, especially those looking for a simple yet sophisticated dessert to share with friends and family.

Be Careful If

If you are sensitive to caffeine or are limiting sugar and dairy intake, keep in mind this cake contains instant coffee, butter, and powdered sugar, which may not suit all dietary needs.

Ingredients

For the Coffee Cake:

• ½ cup (120 ml) warm milk
• 1 tablespoon instant coffee
• 1 teaspoon vinegar
• 7 oz (200 g) salted butter, softened
• ¾ cup plus 2 tablespoons (175 g) sugar
• 3 large eggs
• 1⅔ cups (200 g) all-purpose flour
• 1¼ teaspoons baking powder
• ¼ teaspoon baking soda
• 1 teaspoon vanilla extract (optional)
• ½ teaspoon almond extract or essence (optional)

For the Coffee Buttercream:

• ½ cup (110 g) salted butter, softened
• 2 cups (240 g) powdered sugar, sifted
• 3 to 4 tablespoons heavy cream
• 1 tablespoon instant coffee
• Or alternatively, 2 to 3 tablespoons milk

For the Coffee Soak:

• ⅓ cup (80 ml) strong brewed coffee, unsweetened and cooled

Ingredient Notes

• Instant coffee provides a concentrated coffee flavor without liquid dilution.
• Vinegar activates the baking soda to help the cake rise and stay tender.
• Salted butter adds richness and seasoning; unsalted butter can be used with a pinch of salt added.
• Heavy cream creates a rich texture in the buttercream, but milk can be used for a lighter consistency.

Kitchen Tools Needed

• 22 × 38 cm (9 × 15 inch) baking pan, lined with parchment paper
• Mixing bowls
• Electric mixer or whisk
• Measuring cups and spoons
• Sifter for dry ingredients
• Small brush for soaking the cake layers

Step-by-Step Instructions

1. Preheat your oven to 160°C (320°F) and line the baking pan with parchment paper.
2. In a bowl, stir together the instant coffee and vinegar in warm milk. Set aside to cool—it will curdle slightly, which is normal.
3. Cream together the softened butter and sugar using an electric mixer until the mixture becomes light and fluffy, about 3 to 4 minutes.
4. Beat in the eggs one at a time, then add the vanilla and almond extracts if using.
5. Sift the flour, baking powder, and baking soda into the wet ingredients. Gently fold these dry ingredients together with the coffee-milk mixture, mixing just until combined to avoid overworking the batter.
6. Pour the batter into the prepared pan, smoothing the top with a spatula. Bake in the preheated oven for 25 to 30 minutes, or until a toothpick inserted near the center comes out clean.
7. Remove the cake from the oven and allow it to cool completely in the pan before slicing horizontally into two even layers.

For the Coffee Buttercream:

1. Dissolve the instant coffee in the heavy cream or milk of your choice.
2. In a mixing bowl, beat the softened butter with half of the powdered sugar until creamy.
3. Add the remaining sugar and the coffee mixture, then continue whisking until the buttercream is smooth and fluffy.
4. Place in the refrigerator until ready to use. Before decorating, whisk briefly to regain spreadable texture.

Assembling the Cake:

1. Carefully brush both cut sides of the cake layers with the cooled coffee soak to add moisture and extra flavor.
2. Spread half of the coffee buttercream evenly over the bottom cake layer.
3. Place the second layer on top and spread the remaining buttercream on the top surface.
4. Decorate with sprinkles, chopped nuts, or coffee beans if desired.
5. Slice and serve this tender coffee cake with delicious coffee frosting.

Pro Tips

• Use room temperature ingredients to ensure a smooth, lump-free batter.
• Avoid overmixing the batter once flour is added; gentle folding preserves the cake’s softness.
• Cooling the cake completely before applying frosting prevents melting.
• Adjust the coffee soak strength for a more pronounced or subtle coffee taste.

Lighter Swaps

• Substitute salted butter with unsalted plus a pinch of salt.
• Use milk instead of heavy cream in the frosting to reduce fat content.
• Reduce sugar slightly if a less sweet cake is preferred, keeping in mind it impacts texture.

Common Mistakes

• Overbaking the cake results in dryness—start checking at 25 minutes.
• Not cooling the cake before frosting can lead to a runny buttercream.
• Using hot milk in the batter can curdle the mixture, so ensure it is just warm and combined with coffee and vinegar beforehand.

Serving Suggestions

Serve each slice with a cup of hot coffee or tea, and add fresh berries or a light dusting of cocoa powder to elevate presentation.

Storage Instructions

Store the cake in an airtight container in the refrigerator for up to 3 days to maintain moisture and freshness.

Reheating Tips

If desired, gently warm individual slices in the microwave for 15-20 seconds, but avoid excessive heat to prevent buttercream melting.

Nutrition Estimate

• Calories: approx. 350 per serving
• Protein: 4 g
• Carbohydrates: 40 g
• Fat: 18 g

Values are estimates and may vary by ingredients and portion size.

Recipe Summary

• Prep Time: 15 minutes
• Cook Time: 25–30 minutes
• Total Time: 45 minutes
• Servings: 8 slices
• Cuisine: International
• Course: Dessert
• Calories: approx. 350 per slice

Frequently Asked Questions

Can I make this cake without instant coffee?
You can substitute with brewed strong coffee, but reduce the liquid elsewhere to maintain batter consistency.

Is this cake suitable for freezing?
Yes, you can freeze the cake layers before assembly and thaw before frosting for convenience.

Can I use a different milk alternative?
Yes, plant-based milk works well but may slightly alter the flavor and texture.

Conclusion

This coffee cake recipe is a beautifully simple way to enjoy rich coffee flavor in a soft, tender cake with luscious frosting. Its balanced sweetness and comforting taste make it a versatile choice for many occasions and a satisfying treat for coffee enthusiasts.