Costco Double Chocolate Muffins Recipe
Introduction
These Costco Double Chocolate Muffins are rich, moist, and packed with chocolate flavor. They make a perfect treat for breakfast or an indulgent snack that chocolate lovers will adore.

Ingredients
- 3 eggs
- 1/2 cup oil
- 1/2 cup milk
- 1/4 cup water
- 1 teaspoon vanilla
- 1 cup plain Greek yogurt
- 1 (15.25 ounce) Devil’s food cake mix
- 1 (3.9 ounce) package instant chocolate fudge pudding mix
- 1/2 teaspoon cinnamon
- 2 1/2 cups semisweet chocolate chips, divided
Instructions
- Step 1: Preheat your oven to 375 degrees Fahrenheit and line 12 jumbo muffin tins with jumbo liners.
- Step 2: In a large bowl, use an electric mixer to combine the eggs, oil, milk, water, and vanilla until smooth.
- Step 3: Whip in the Greek yogurt until fully incorporated.
- Step 4: Using a spoon, add the Devil’s food cake mix, instant chocolate fudge pudding mix, and cinnamon to the wet ingredients.
- Step 5: Stir everything together until the batter is well combined and smooth.
- Step 6: Fold in 2 cups of the semisweet chocolate chips gently.
- Step 7: Spoon the batter evenly into the prepared muffin liners.
- Step 8: Top each muffin with the remaining chocolate chips for extra gooeyness.
- Step 9: Bake for 20 to 25 minutes, or until a toothpick inserted into the center comes out clean.
Tips & Variations
- For a richer flavor, substitute half the oil with melted butter.
- Add a handful of chopped nuts or chocolate chunks for added texture.
- Use low-fat Greek yogurt to reduce calories while keeping moisture.
- Try swapping semisweet chocolate chips with dark or white chocolate for different flavor profiles.
Storage
Store the muffins in an airtight container at room temperature for up to 3 days. For longer storage, freeze the muffins in a sealed bag for up to 2 months. Reheat frozen muffins in the microwave for 20-30 seconds or until warm before serving.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use regular yogurt instead of Greek yogurt?
Yes, you can substitute regular yogurt, but Greek yogurt adds extra thickness and moisture to the batter, resulting in a richer muffin texture.
Do I need jumbo muffin liners for this recipe?
Jumbo liners work best to hold the large muffin size, but if you only have standard liners, you can still bake the batter—just expect smaller muffins and possibly a shorter baking time.
PrintCostco Double Chocolate Muffins Recipe
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.
- Prep Time: 15 minutes
- Cook Time: 20-25 minutes
- Total Time: 35-40 minutes
- Yield: 12 jumbo muffins 1x
- Category: Baking
- Method: Baking
- Cuisine: American
Ingredients
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
- Preheat Oven: Set your oven to 375°F (190°C) to prepare for baking the muffins.
- Prepare Muffin Tins: Line 12 jumbo muffin tin cups with jumbo muffin liners to prevent sticking.
- Mix Wet Ingredients: In a large bowl, use an electric mixer to combine the eggs, oil, milk, water, and vanilla extract until smooth.
- Add Yogurt: Whip in the Greek yogurt (original recipe uses sour cream, but Greek yogurt works perfectly) to add moisture and richness.
- 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.
- Incorporate Chocolate Chips: Stir in 2 cups of the semisweet chocolate chips to distribute chocolate throughout the muffin batter.
- Fill Muffin Cups: Spoon the batter evenly into the prepared jumbo muffin cups, filling each nearly to the top.
- 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.
- 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.
- 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

