These moist and rich double chocolate muffins are packed with cocoa and melty chocolate chips — perfect for breakfast or dessert.
1¾ cups all-purpose flour
½ cup unsweetened cocoa powder
1 tsp baking soda
1½ tsp baking powder
½ tsp salt
½ cup granulated sugar
¼ cup brown sugar (optional)
2 large eggs
½ cup buttermilk or Greek yogurt
⅓ cup vegetable oil or melted butter
1½ tsp vanilla extract
1 cup semisweet chocolate chips (plus extra for topping)
Preheat oven to 375°F (190°C). Line or grease a 12-cup muffin tin.
In a large bowl, whisk flour, cocoa, baking soda, baking powder, and salt.
In another bowl, beat eggs, sugar, brown sugar, yogurt (or buttermilk), oil, and vanilla until smooth.
Add wet ingredients to dry. Mix gently until just combined.
Fold in chocolate chips. Divide batter into muffin cups and top with extra chips.
Bake 17–20 minutes or until a toothpick comes out with moist crumbs.
Cool for 5 minutes in pan, then transfer to a wire rack.
For extra rich flavor, add espresso powder or use dark chocolate chunks.
Store in an airtight container at room temp for 3 days, or freeze for 2–3 months.