– 3/4 cup (94g) all-purpose flour Provides the essential structure for the cupcakes.

– 1/2 cup (41g) unsweetened natural cocoa powder Delivers the deep, decadent chocolate taste and color.

– 1 teaspoon espresso powder or instant espresso Boosts the chocolate flavor subtly (you can swap for instant coffee if needed).

– 3/4 teaspoon baking powder Helps the cupcakes rise for a light, fluffy crumb.

– 1/2 teaspoon baking soda Works with the other leavening agents to ensure even baking.

– 1/4 teaspoon salt Balances the sweetness and enhances overall flavor.

– 2 large eggs at room temperature Adds richness and helps bind the ingredients.

– 1/2 cup (100g) granulated sugar Sweetens the batter and contributes to browning.

– 1/2 cup (100g) packed light brown sugar Provides moisture and a deeper sweetness.

– 1/3 cup (80ml) vegetable or canola oil (or melted coconut oil) Keeps the cupcakes incredibly moist and tender.

– 2 teaspoons pure vanilla extract Enhances the flavor profile with a warm, aromatic note.

– 1/2 cup (120ml) buttermilk at room temperature Adds tanginess and helps create a soft, tender crumb (you can make your own by mixing 1 teaspoon of vinegar or lemon juice with whole milk and letting it sit for 5 minutes).