Mocha Hazelnut Cupcakes: Rich, Fudgy, and Packed With Coffee-Chocolate Flavour

Mocha Hazelnut Cupcakes: Rich, Fudgy, and Packed With Coffee-Chocolate Flavour

Mocha hazelnut cupcakes are one of those bakes that look impressive, taste even better, and are honestly not that hard to pull off once you know what you’re doing.

If you’ve ever made cupcakes that came out dry, dense, or with frosting that slid right off — I’ve been there too. This recipe fixes all of that.

The base is a soft, espresso-spiked sponge made extra moist with sour cream. The frosting is a whipped Nutella buttercream that pipes like a dream. And those toasted hazelnuts on top? They add a crunch that makes every bite feel complete.

Let me walk you through every single step — including the bits that actually matter.

Quick Facts

Prep Time	25–30 minutes
Cook Time	18–24 minutes
Total Time	45–55 minutes (plus cooling time)
Servings	12 cupcakes
Difficulty	Intermediate
Dietary Tags	Vegetarian · Contains gluten, dairy, eggs, tree nuts

Allergen Heads-Up

Before you start, here’s what’s in these cupcakes:

• 🌾 Gluten — all-purpose flour
• 🥛 Dairy — butter, sour cream, milk, heavy cream
• 🥚 Eggs — in the batter
• 🌰 Tree nuts — hazelnuts and Nutella

These are not vegan and not gluten-free in their standard form.

Equipment You’ll Need

The Essentials

• Oven — set to 350°F / 175°C
• 12-cup muffin tin — standard size
• Paper cupcake liners — don’t skip these
• Large and medium mixing bowls — you’ll need both
• Stand mixer or hand mixer — essential for creaming and frosting
• Whisk — for dry ingredients and the espresso mix
• Rubber spatula — for folding and scraping
• Measuring cups and spoons — precision matters here
• Toothpick or cake tester — to check the bake
• Baking sheet — for toasting the hazelnuts

Optional But Helpful

• Piping bag with star tip — for beautiful swirled frosting
• Food processor — to chop hazelnuts quickly
• Cooling rack — speeds up cooling evenly
• Kitchen towel — for rubbing skins off toasted hazelnuts
• Pastry brush — if you want to add an espresso soak

Simple Alternatives

• No food processor? Use a sharp knife or a zip-top bag and rolling pin to crush the nuts
• No piping bag? An offset spatula gives a lovely rustic swirl
• No cupcake liners? Lightly grease the tin — just know the edges will be slightly different in texture

Ingredients

For the Espresso Cupcakes

Dry ingredients:

• 1 ¼ cups (155g) all-purpose flour
• 2 teaspoons baking powder
• ¼ teaspoon salt

Wet and fat ingredients:

• 6 tablespoons (85g) unsalted butter, softened
• ¾ cup (150g) granulated sugar
• 2 large eggs, room temperature
• 1 teaspoon vanilla extract
• 1 cup (240g) sour cream, room temperature

Mocha component:

• ¼ cup (20g) instant espresso powder
• 2 tablespoons very hot water
• ¼ cup (60ml) whole milk, room temperature

For the Nutella Buttercream Frosting

• 2 sticks / 1 cup (225g) unsalted butter, softened
• 1 cup (300g) Nutella or hazelnut chocolate spread
• ~8 cups (960g) powdered sugar, sifted
• ¼ cup (60ml) heavy cream, plus more to adjust consistency

For Garnish

• 1 cup (135g) hazelnuts, toasted and roughly chopped
• Chocolate sprinkles, cocoa nibs, or chocolate crunch pieces — optional but gorgeous

Substitution Notes

Ingredient	Swap
Sour cream	Equal amount of plain Greek yogurt
Instant espresso powder	Strong brewed coffee (cooled) — reduce milk slightly
Whole milk	2% milk or oat milk — slight texture difference
Nutella	Any hazelnut chocolate spread
Heavy cream	Milk or half-and-half — slightly lighter frosting

Method

Before You Start — The Mise en Place That Saves You

I know it’s tempting to skip this bit. Don’t.

Getting these things right before you start mixing makes everything else easier:

• Take the butter, eggs, sour cream, and milk out of the fridge at least 30 minutes before you begin
• Room temperature ingredients blend together far more smoothly and give you a better crumb
• Preheat your oven to 350°F / 175°C now — it needs to be fully up to temperature before the cupcakes go in
• Line your muffin tin with cupcake liners and set it aside
• Whisk together the flour, baking powder, and salt in a medium bowl and leave it ready

Step 1 — Toast the Hazelnuts

Spread the hazelnuts in a single layer on a