Ultimate Double Chocolate Muffins

When it comes to double chocolate muffins, these are the best of the best - moist, tender, and extremely chocolatey. They're loaded with three kinds of chocolate for an intense amount of chocolate flavor. And they can be made gluten-free!

  • Author: alexandra
  • Prep Time: 20 minutes
  • Cook Time: 17-22 minutes
  • Total Time: 37-42 minutes
  • Yield: 12 muffins 1x
  • Category: muffins
  • Method: baking
  • Diet: Gluten Free


  • 2 cups, spoon and level (8 1/2 ounces) all-purpose flour (gluten-free or regular)*
  • 1 cup (3 1/2 ounces) natural cocoa powder, sifted
  • 2 1/2 teaspoons baking powder
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon salt
  • 2 eggs plus 1 egg yolk
  • 1 1/4 cups (8 3/4 ounces) granulated sugar
  • 1/2 cup (3 7/8 ounces) avocado oil, canola oil, OR vegetable oil
  • 1 1/2 cups (12 3/4 ounces) sour cream
  • 1 tablespoon vanilla extract
  • 10 1/2 ounces chocolate chips and/or chopped chocolate, divided**
  • sparkling sugar, for tops


  1. Preheat oven to 375ºF and grease a standard 12-cup muffin pan with cooking spray, wiping off any excess spray on the top of the pan.
  2. In a bowl, whisk (or better yet sift) together the flour, cocoa powder, baking powder, baking soda, and salt.
  3. In the bowl of a stand mixer fitted with the whisk attachment (or using a handheld electric mixer), begin beating the eggs on medium-high speed. Slowly stream in the sugar while beating and continue to beat until the mixture is pale and thickened and ribbons down from the beater when lifted before settling back down into the batter (see photo in post above). Wipe down the bowl and beater as needed.
  4. Beat in the oil until fully incorporated. Wipe down bowl and beater and beat in sour cream and vanilla until evenly incorporated.
  5. Add the dry ingredients to the wet and fold in just until only a few visible streaks remain. Add 8 1/2 ounces of the chocolate and fold in just until all ingredients are evenly incorporated. The batter will be thick!
  6. Spoon the batter evenly into the prepared muffin cups, smoothing the tops if needed but keeping the scoops mounded; fill all 12 muffin cups completely. Sprinkle the remaining chocolate and sparkling sugar on top.
  7. Bake muffins in preheated oven for 10 minutes, and then reduce heat to 350ºF and bake another 7-12 minutes, until a toothpick inserted into the center of one comes out clean, or with just a few moist crumbs or streaks of melted chocolate. Cool muffins in pan for about 15 minutes before transferring to a wire rack to cool completely. Store muffins in an airtight container at room temperature, or in the refrigerator to keep for more than a few days.


*When this recipe was originally posted, only regular all-purpose flour was specified. However, I have since tested it with gluten-free all-purpose flour, and can confirm that this works just as well!

**For the chocolate in this recipe, I recommend using 3 different types for added flavor and complexity. You can use a mixture of milk, semisweet, and bittersweet chocolate (3 1/2 ounces of each). 

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