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Costco Double Chocolate Muffins Recipe

4.8 from 98 reviews

These Costco-inspired Double Chocolate Muffins are rich, moist, and packed with chocolate flavor. Made with devil’s food cake mix and instant chocolate fudge pudding, these jumbo muffins deliver a tender crumb and intense chocolate taste, perfect for breakfast or a decadent snack.

Ingredients

Scale

Wet Ingredients

  • 3 eggs
  • 1/2 cup oil
  • 1/2 cup milk
  • 1/4 cup water
  • 1 teaspoon vanilla extract
  • 1 cup plain Greek yogurt

Dry Ingredients

  • 1 15.25 ounce Devil’s food cake mix
  • 1 3.9 ounce package instant chocolate fudge pudding mix
  • 1/2 teaspoon ground cinnamon

Add-ins

  • 2 1/2 cups semisweet chocolate chips, divided

Instructions

  1. Preheat Oven: Set your oven to 375°F (190°C) to prepare for baking the muffins.
  2. Prepare Muffin Tins: Line 12 jumbo muffin tin cups with jumbo muffin liners to prevent sticking.
  3. Mix Wet Ingredients: In a large bowl, use an electric mixer to combine the eggs, oil, milk, water, and vanilla extract until smooth.
  4. Add Yogurt: Whip in the Greek yogurt (original recipe uses sour cream, but Greek yogurt works perfectly) to add moisture and richness.
  5. Add Dry Ingredients: With a spoon, gently fold in the devil’s food cake mix, instant chocolate fudge pudding mix, and cinnamon, blending until the batter is well combined.
  6. Incorporate Chocolate Chips: Stir in 2 cups of the semisweet chocolate chips to distribute chocolate throughout the muffin batter.
  7. Fill Muffin Cups: Spoon the batter evenly into the prepared jumbo muffin cups, filling each nearly to the top.
  8. Top with Remaining Chips: Sprinkle the remaining 1/2 cup of chocolate chips on top of each muffin for extra chocolate goodness and appealing presentation.
  9. Bake: Place the muffin tin in the preheated oven and bake for 20 to 25 minutes. Muffins are done when a toothpick inserted into the center comes out clean or with moist crumbs.
  10. Cool and Serve: Allow muffins to cool in the pan for 5 minutes before transferring to a wire rack to cool completely. Serve warm or at room temperature.

Notes

  • Using Greek yogurt instead of sour cream adds protein and a slight tanginess to balance the sweetness.
  • Ensure not to overmix after adding dry ingredients to keep muffins tender.
  • Check doneness early at 20 minutes to avoid overbaking, which could dry the muffins.
  • For a more intense chocolate flavor, use high-quality semisweet chocolate chips.
  • Store muffins in an airtight container at room temperature for up to 3 days or freeze for longer storage.

Keywords: Double chocolate muffins, Costco muffins, chocolate chip muffin recipe, devil’s food cake mix muffins, easy chocolate muffins, jumbo chocolate muffins