Name: Irresistibly Decadent Costco Double Chocolate Muffins
Prep time: 15 min
Cook time: 25 min
Total time: 40 min
Ingredients: 3 large eggs (Provide structure and moisture to the muffins.); ½ cup oil (Enhance the richness and keep the muffins tender.); ½ cup milk (Helps create the perfect batter consistency.); ¼ cup water (Keeps the mixture from being too thick and ensures moist muffins.); 1 teaspoon vanilla extract (Adds a lovely depth of flavor.); 1 cup sour cream (or plain Greek yogurt) (Ensures the muffins are wonderfully moist and adds a tangy note.); 1 box Devil’s food cake mix (The base for your chocolate adventure, making it easy and delicious!); 3.9 ounce instant chocolate fudge pudding (Adds an extra layer of chocolatey richness.); ½ teaspoon cinnamon (A pinch of spice that beautifully complements the chocolate flavors.); 2 ½ cups semisweet chocolate chips (divided use) (The star of the show, providing pockets of gooey chocolate throughout.); ½ cup semisweet chocolate chips (Sprinkle these on top of the muffins for extra indulgence!)

As I stood in my kitchen, the rich aroma of chocolate wafted through the air, instantly lifting my spirits. It was the perfect moment to whip up a batch of Costco Double Chocolate Muffins, a homemade delight that not only rivals their store-bought counterpart but elevates it to new heights! This recipe is a true crowd-pleaser, ideal for sharing with family or savoring alone during a cozy afternoon. With just 15 minutes of prep and a mouth-watering payoff, these muffins promise to be the sweet escape you didn't know you needed. Plus, they’re freezer-friendly, so you can enjoy a chocolatey treat anytime you please. Are you ready to indulge in this chocolatey goodness and discover just how easy it is to create bakery-style muffins at home?

Why are these muffins so irresistible?

Decadent Chocolatey Bliss: With a whopping 2 ½ cups of semi-sweet chocolate chips, these muffins are every chocolate lover's dream come true.

Quick and Easy: The straightforward steps mean you'll have homemade muffins in just 40 minutes—perfect for those busy mornings or spontaneous cravings!

Versatile Base: Whether enjoyed fresh out of the oven or frozen for later, these muffins adapt to your schedule and taste buds.

Perfectly Moist Texture: Thanks to the combination of sour cream and instant pudding mix, each muffin is rich, moist, and absolutely delightful.

Family-Favorite Appeal: Share these treats with loved ones, and watch them disappear; they're that good! Who could resist a homemade chocolate muffin?

Costco Double Chocolate Muffin Ingredients

For the Batter

3 large eggs – Provide structure and moisture to the muffins.
½ cup oil – Enhance the richness and keep the muffins tender.
½ cup milk – Helps create the perfect batter consistency.
¼ cup water – Keeps the mixture from being too thick and ensures moist muffins.
1 teaspoon vanilla extract – Adds a lovely depth of flavor.
1 cup sour cream (or plain Greek yogurt) – Ensures the muffins are wonderfully moist and adds a tangy note.
1 box Devil’s food cake mix – The base for your chocolate adventure, making it easy and delicious!
3.9 ounce box instant chocolate fudge pudding – Adds an extra layer of chocolatey richness.
½ teaspoon cinnamon – A pinch of spice that beautifully complements the chocolate flavors.
2 ½ cups semisweet chocolate chips (divided use) – The star of the show, providing pockets of gooey chocolate throughout.

Optional Topping

Remaining ½ cup of semisweet chocolate chips – Sprinkle these on top of the muffins for extra indulgence!

Enjoy these Costco Double Chocolate Muffins that are sure to win over your taste buds and heart!

Step‑by‑Step Instructions for Costco Double Chocolate Muffins

Step 1: Preheat and Prepare
Start by preheating your oven to 375°F (190°C). While it warms up, line two 6-well jumbo muffin tins with colorful cupcake liners or lightly spray them with nonstick cooking spray. This will ensure that your Costco Double Chocolate Muffins release easily and maintain their delightful shape when baked.

Step 2: Mix Wet Ingredients
In a large mixing bowl, crack in the 3 large eggs and pour in the ½ cup of oil, ½ cup of milk, ¼ cup of water, and 1 teaspoon of vanilla extract. Using an electric mixer or a stand mixer, beat the mixture on medium speed for about 2 minutes until everything is well incorporated and slightly frothy. This step creates a lovely base for your batter.

Step 3: Incorporate Sour Cream
Next, add in the 1 cup of sour cream (or plain Greek yogurt) to the wet mixture. Stir gently until fully combined, ensuring the sour cream is evenly mixed in. This addition will enrich the batter and help create that wonderfully moist texture that will make your Costco Double Chocolate Muffins irresistible.

Step 4: Combine Dry Ingredients
Now, it's time to add the dry ingredients. Carefully sift in the box of Devil’s food cake mix, the instant chocolate fudge pudding, and the ½ teaspoon of cinnamon. Stir the mixture on a low setting for about a minute until it just comes together. Be cautious not to overmix; you want to keep it light and fluffy!

Step 5: Fold in Chocolate Chips
Grab those luscious chocolate chips! Gently fold in 2 cups of the semisweet chocolate chips into the batter using a spatula or wooden spoon. This ensures that gooey pockets of chocolate will be throughout every bite of your Costco Double Chocolate Muffins, making them extra decadent once baked.

Step 6: Fill Muffin Tins
Using a spring-loaded cookie scoop, fill the prepared muffin tins about ¾ full with the delightful batter. To make these treats even more indulgent, sprinkle the remaining ½ cup of chocolate chips evenly over the tops of the filled muffin cups, creating a tempting visual appeal before baking.

Step 7: Bake to Perfection
Place the muffin tins on the middle rack of your preheated oven and bake for about 20-25 minutes. You’ll know your Costco Double Chocolate Muffins are done when a toothpick inserted in the center comes out clean or with a few moist crumbs. Keep a close eye as they start to rise and turn beautifully golden!

Step 8: Cool and Enjoy
Once baked, remove the muffins from the oven and allow them to cool in the tin for about 5 minutes. Then, transfer them to a wire rack to cool completely. This step is essential to let the flavors develop fully, so resist the urge to dive in just yet! Enjoy your homemade chocolate bliss!

Make Ahead Options

These Costco Double Chocolate Muffins are a fantastic choice for busy home cooks looking to save time! You can prepare the batter up to 24 hours in advance by mixing your wet and dry ingredients as directed, then cover and refrigerate it. This method keeps the muffins fresh, allowing the flavors to meld beautifully without sacrificing quality. When you're ready to bake, just scoop the batter into your muffin tins and add the chocolate chips before baking as indicated. For longer storage, you can also freeze the baked muffins. Just reheat them in the microwave for a quick, indulgent treat that tastes just as delicious as fresh-baked!

Costco Double Chocolate Muffin Variations

Indulge in the delightful world of possibilities with these deliciously creative twists on your Costco Double Chocolate Muffins!

Gluten-Free: Substitute the Devil’s food cake mix with a gluten-free chocolate cake mix for a satisfying treat everyone can enjoy. Just make sure to check the specific baking times, as gluten-free mixes may vary!
Nutty Crunch: Add 1 cup of chopped walnuts or pecans into the batter for a beautiful crunch that contrasts wonderfully with the soft muffin texture. The nutty notes elevate the chocolate flavor to new heights!
Fruitful Fudge: Mix in 1 cup of fresh or frozen raspberries for a burst of fruity flavor that pairs brilliantly with chocolate. The tartness of the raspberries will balance the richness nicely, creating a mouthwatering experience.
Dairy-Free: Swap the sour cream for a non-dairy yogurt and use almond milk instead of regular milk. Your muffins will still be rich and delightful, and everyone will love the creamy texture!
Spicy Kick: For those who crave an adventurous twist, add a teaspoon of cayenne pepper or chili powder to the mix. This surprising heat will tantalize your taste buds and bring a whole new dimension to your chocolate muffins!
Caramel Surprise: Fold in ½ cup of caramel chips along with the chocolate chips for a gooey, sweet explosion of flavor. You’ll be met with pockets of warm caramel that make each bite incredibly satisfying.
Banana Bliss: Incorporate 1 cup of mashed ripe bananas into the wet ingredients for a banana-chocolate mashup that adds natural sweetness and moisture. This option is perfect for using up overripe bananas while enjoying a deliciously unique muffin!
Boozy Chocolate: For a fun adult twist, add a tablespoon of espresso or Irish cream liqueur to the wet ingredients. It enhances the rich chocolate flavor and adds a delightful hint of warmth, perfect for special occasions.

What to Serve with Costco Double Chocolate Muffins

Savor the sweet moments as you enjoy these decadent muffins with delightful pairings that elevate the experience.

Fresh Berries: The tartness of berries like raspberries or strawberries beautifully balances the rich chocolate flavor.
Whipped Cream: A dollop of whipped cream adds a light and airy touch, making each bite feel indulgent.

Pair these muffins with fresh fruit for a refreshing palate cleanser. Bright, juicy bites of berry goodness enhance the chocolatey richness, offering a burst of flavor that keeps you coming back for more.

Coffee or Espresso: The boldness of coffee perfectly complements the sweetness of the muffins, awakening your senses with every sip.
Vanilla Ice Cream: Melted on top, it provides a luscious creaminess that transforms your muffin into a delightful dessert.

Imagine the warmth of a freshly brewed cup of coffee alongside your muffin. This classic pairing turns a simple breakfast into a cozy café experience right at home.

Chocolate Sauce Drizzle: For the ultimate chocolate lover, drizzle some extra chocolate sauce on top for a decadent finish.
Vanilla Yogurt Parfait: Layer the muffins with yogurt and granola for a fun and wholesome twist that adds texture.

Creating a yogurt parfait adds layers of flavor and texture, making it a delightful brunch option that’s as beautiful as it is delicious.

How to Store and Freeze Costco Double Chocolate Muffins

Room Temperature: Keep your muffins in an airtight container at room temperature for up to 4 days to maintain their moisture and flavor.

Fridge: If you prefer a cooler treat, store the muffins in the refrigerator, where they will stay fresh for up to 7 days; just be sure to wrap them tightly to prevent drying out.

Freezer: For longer storage, freeze the muffins individually wrapped in plastic wrap, then place them in an airtight container or freezer bag. They can last for up to 3 months!

Reheating: To enjoy your frozen Costco Double Chocolate Muffins, simply thaw them at room temperature for about 30 minutes or microwave for 15-20 seconds for a warm, fudgy treat!

Expert Tips for Costco Double Chocolate Muffins

Mixing Method: Ensure your wet ingredients are well combined before adding dry ingredients. This helps the muffins rise evenly and stay fluffy!

Don’t Overmix: When combining wet and dry ingredients, stir just until incorporated. Overmixing can lead to dense muffins instead of the desired light texture.

Chocolate Chip Distribution: Reserve some chocolate chips for topping. This not only adds visual appeal but also gives an extra melty chocolate experience in every bite.

Cool Down Properly: Let the muffins cool in the pan for 5 minutes before transferring to a wire rack. This prevents them from becoming soggy and helps maintain their structure.

Storage Savvy: If you’re not eating all the muffins at once, store them in an airtight container at room temperature for up to 4 days, or freeze them for up to 3 months. Enjoy your Costco Double Chocolate Muffins anytime!

Costco Double Chocolate Muffins Recipe FAQs

What type of eggs should I use?
Absolutely! Large eggs are recommended for this recipe as they provide the necessary structure and moisture. If you're looking for alternatives, you can use egg substitutes like unsweetened applesauce or mashed bananas in a 1:1 ratio.

How should I store the muffins?
To keep your Costco Double Chocolate Muffins fresh, store them in an airtight container at room temperature for up to 4 days. If you live in a particularly humid environment, consider refrigerating them, where they can stay fresh for up to a week. Just remember to wrap them tightly to avoid drying out!

Can I freeze these muffins?
Very! Freezing is a fantastic option for these muffins. After they've cooled completely, wrap each muffin individually in plastic wrap, ensuring they are airtight. Then, place them in a freezer bag or airtight container. They can be frozen for up to 3 months. When you're ready to enjoy one, allow it to thaw at room temperature for about 30 minutes or pop it in the microwave for 15-20 seconds for a warm, melty treat!

What can I do if my muffins are too dense?
No worries, this can easily be rectified! If you find that your muffins turned out dense, it’s often due to overmixing the batter. When combining wet and dry ingredients, stir just until everything is incorporated. A few lumps in the batter are perfectly fine! Additionally, make sure your baking powder or cake mix is fresh, as expired ingredients can lead to poor rising.

Are there any dietary considerations for this recipe?
Definitely! If you're catering to dietary restrictions, consider using gluten-free cake mix for gluten sensitivities. For dairy-free options, try substituting the sour cream with a non-dairy yogurt or use almond milk instead of regular milk. As for allergies, always check the labels on the chocolate chips, as some may contain allergens like soy or milk.

Can I customize the chocolate chips?
Of course! The more the merrier when it comes to chocolate! You can mix and match the types of chocolate chips, adding dark chocolate, white chocolate, or even peanut butter chips for a different flavor profile. Enjoy experimenting with this recipe!