Coffee Cupcakes with Coffee Buttercream

Name: Coffee Cupcakes with Coffee Buttercream
Prep time: 20 min
Cook time: 23 min
Total time: 43 min
Cuisine: American
Ingredients: 1 tbsp instant coffee; 120g hot water; 200g granulated sugar; 210g all-purpose flour; ½ tsp baking powder; ½ tsp baking soda; ½ tsp salt; 120g sour cream (room temperature); 75g vegetable oil; 2 large eggs; 1½ tsp vanilla extract; 200g unsalted butter, softened; 330g powdered sugar, sifted; 4–5 tsp strong brewed coffee; 1½ tsp instant espresso powder; Optional: instant coffee powder or coffee beans for garnish

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If you're a coffee lover like me, you're in for a real treat today. These coffee cupcakes with coffee buttercream are everything I love about my morning cup of coffee—bold, smooth, comforting—wrapped up in the softest, fluffiest cupcake. Honestly, they’re like little edible hugs.

I love baking these for weekend treats, brunches, or anytime I need a cozy pick-me-up. The cupcakes are made with instant coffee for that strong, aromatic hit, and topped with a velvety buttercream that melts in your mouth. And the best part? They’re super easy to make—even if you’re not a seasoned baker.

Why You’ll Love These Coffee Cupcakes

Coffee lover’s dream: They’re bursting with rich mocha flavor in both the cake and the frosting.
Soft & fluffy texture: Thanks to sour cream and oil, these cupcakes are perfectly moist and tender.
Easy recipe: No complicated steps—just simple, satisfying baking.

Key Ingredients for the Best Coffee Cupcakes

Here’s what makes these cupcakes extra special:

Instant coffee: I use instant espresso powder for a bold, rich flavor that’s hard to beat.
Sour cream: Adds moisture and a subtle tang—Greek yogurt works too!
Boiled water: Helps dissolve the coffee and bloom the cocoa notes.
Vegetable oil: Keeps the cupcakes soft and moist for days.
Butter: For that luxuriously smooth buttercream texture.
Powdered sugar: Sifted for a super silky frosting.

How to Make Coffee Cupcakes

Let’s walk through the step-by-step process. These cupcakes come together in no time!

Step 1: Prep the Oven

Preheat your oven to 160ºC (320ºF) and line a 12-cup cupcake tray with liners.

Step 2: Brew the Coffee

Dissolve 1 tablespoon of instant coffee in 120g of hot water and set aside to cool slightly.

Step 3: Mix Dry Ingredients

In a large bowl, whisk together:

200g granulated sugar
210g all-purpose flour
½ teaspoon baking powder
½ teaspoon baking soda
½ teaspoon salt

Step 4: Mix Wet Ingredients

In another bowl, whisk together:

120g sour cream (room temp)
75g vegetable oil
2 large eggs
1½ teaspoon vanilla extract
Your prepared coffee mixture

Step 5: Combine and Bake

Slowly mix the wet ingredients into the dry, stirring gently. Divide the batter into your cupcake liners and bake for 20–23 minutes. Let cool in the pan for 5 minutes before transferring to a wire rack.

How to Make Coffee Buttercream

This buttercream is rich, smooth, and perfectly balanced—not too sweet, with just the right amount of coffee kick.

Step 6: Brew Strong Coffee

Mix 4–5 teaspoon of brewed coffee with 1½ teaspoon of instant espresso powder for an extra punch.

Step 7: Cream the Butter

Beat 200g room-temp butter on medium-high for 4 minutes. Scrape down the bowl and beat another 2 minutes.

Step 8: Add Sugar and Coffee

Gradually add 330g sifted powdered sugar, alternating with your coffee mixture. Mix on low until smooth and creamy.

Step 9: Decorate

Transfer buttercream to a piping bag with a star tip. Pipe onto cooled cupcakes and dust with instant coffee or decorate with a coffee bean if desired.

Expert Baking Tips

Use a kitchen scale for precise measurements—especially for baking!
Don’t overmix the batter. Use a spatula to gently fold everything together at the end.
Use light-colored pans for an even bake. Dark pans retain more heat and may dry out your cupcakes.
Room temperature ingredients are key—cold eggs and butter can affect your batter’s texture.

Frequently Asked Questions

Can I make these coffee cupcakes without instant coffee?

Yes! You can use strong brewed coffee or espresso instead. Just make sure it's fresh and hot when added to the batter for full flavor.

Can I use Greek yogurt instead of sour cream in this recipe?

Absolutely. Full-fat Greek yogurt is a great substitute and keeps the cupcakes just as moist and flavorful.

How do I store coffee cupcakes with buttercream?

Store frosted cupcakes in an airtight container. They’ll stay fresh at room temp for 1–2 days or in the fridge for up to 5. Bring to room temp before serving.

Can I make the buttercream frosting ahead of time?

Yes! Make it up to 3 days in advance. Store in an airtight container in the fridge. Let it warm up and re-whip before piping.

How do I make the coffee flavor stronger in the cupcakes?

Add an extra ½–1 teaspoon of instant espresso powder to the batter or frosting. It deepens the flavor beautifully without making it bitter.

Can I freeze these coffee cupcakes?

Yes! Freeze unfrosted cupcakes for up to 2 months. Thaw and frost when needed. You can also freeze the buttercream separately and re-whip before using.

More Cupcake Recipes You’ll Love

If you're obsessed with cupcakes like I am, here are some more treats to try:

Final Thoughts

These coffee cupcakes are such a cozy little indulgence. Whether you’re a full-on coffee fanatic or just love baking something a little different, these cupcakes are sure to impress. They’re moist, flavorful, and topped with the dreamiest buttercream—honestly, what’s not to love?

Perfect for birthdays, brunches, or just treating yourself with a midday pick-me-up.

Save This Recipe for Later!

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