Description
These homemade Costco-style chocolate muffins are rich, moist, and packed with chocolate chips, replicating the popular bakery treat at home. Perfect for breakfast, snacks, or dessert, they combine cocoa powder, melted butter, sour cream, and a touch of vanilla for an irresistible chocolate flavor and tender crumb.
Ingredients
Scale
Dry Ingredients
- 2 cups all-purpose flour
- 1 cup granulated sugar
- 1/2 cup unsweetened cocoa powder
- 1 teaspoon baking powder
- 1/2 teaspoon baking soda
- 1/2 teaspoon salt
Wet Ingredients
- 2 large eggs
- 1 cup whole milk
- 1/2 cup unsalted butter, melted
- 1 teaspoon vanilla extract
- 1/2 cup sour cream
- 1/4 cup hot water (to dissolve cocoa powder)
Add-ins
- 1 cup semi-sweet chocolate chips
Instructions
- Preheat the oven. Preheat your oven to 350°F (175°C). Line a muffin tin with paper liners or grease the cups with butter or oil to prevent sticking.
- Combine dry ingredients. In a large bowl, whisk together the all-purpose flour, granulated sugar, unsweetened cocoa powder, baking powder, baking soda, and salt to evenly distribute all leavening agents and flavorings.
- Mix wet ingredients. In a separate bowl, beat the eggs and then add whole milk, melted unsalted butter, vanilla extract, and sour cream. Stir the mixture until it is smooth and homogenous.
- Dissolve cocoa powder. In a small bowl, dissolve the cocoa powder in hot water to enhance its flavor and create a more uniform texture, then add this mixture to the wet ingredients, stirring until thoroughly combined.
- Combine wet and dry ingredients. Pour the wet ingredients into the dry ingredient bowl and stir gently until just combined. Be careful not to overmix; the batter should remain thick and slightly lumpy to ensure tender muffins.
- Fold in chocolate chips. Gently fold the semi-sweet chocolate chips into the batter, distributing them evenly throughout without overworking the batter.
- Fill muffin cups. Divide the batter evenly among the muffin cups, filling each about three-quarters full to allow room for the muffins to rise.
- Bake the muffins. Place the muffin tin in the preheated oven and bake for 20-25 minutes, or until a toothpick inserted in the center of a muffin comes out clean or with just a few moist crumbs. Avoid overbaking to maintain moisture.
- Cool the muffins. Let the muffins cool in the pan for 5 minutes, then transfer them to a wire rack to cool completely. This prevents sogginess from steam.
- Serve and enjoy. Serve the muffins warm or at room temperature for the best flavor experience. Enjoy your homemade Costco-inspired chocolate muffins!
Notes
- Do not overmix the batter to keep the muffins tender and moist.
- Filling the muffin cups about 3/4 full helps the muffins rise perfectly without spilling over.
- You can substitute sour cream with yogurt for a slight variation in moisture.
- Store leftover muffins in an airtight container for up to 3 days at room temperature or freeze for longer storage.
- For extra texture, sprinkle a few chocolate chips on top of each muffin before baking.
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Category: Baking
- Method: Baking
- Cuisine: American
