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Chocolate muffins Costco copycat

These chocolate muffins are my go-to Costco copycat—super rich, moist, and totally crave-worthy every time.

History of Muffins

The Humble Beginnings of Muffins

Muffins have been charming breakfast tables and bakeries for centuries, but their story starts in two very different places—England and the United States. Interestingly, these two muffin types developed independently, yet both gained massive popularity.

In 18th-century England, bakers created the original “English muffin,” a yeast-leavened bread cooked on a griddle. These were light, airy, and perfect for toasting. Street vendors would walk the cobblestone streets ringing bells to announce fresh muffins for sale. As a result, the English muffin became a daily staple—especially when served with butter and jam at tea time.

Meanwhile, across the Atlantic, a very different type of muffin began to rise—literally. American muffins, which we know today as the cupcake-shaped quick breads, emerged thanks to the invention of baking soda and baking powder in the 19th century. These chemical leaveners allowed bakers to create individual cakes quickly, without the long wait for yeast to rise. And so, the American-style muffin was born—moist, dense, and often packed with fruits, nuts, or spices.


Muffins Take Over American Kitchens

As the 20th century rolled in, muffins gained momentum in home kitchens. Their appeal was obvious: they were quick, simple, and versatile. By adding different ingredients—like blueberries, bananas, or bran—home bakers could whip up a batch to suit any taste or occasion. And unlike cupcakes, muffins were seen as more wholesome and breakfast-appropriate, making them a go-to for busy mornings.

Commercial bakeries also caught on. Muffin mixes hit grocery store shelves, giving rise to convenience muffins across America. As a result, families everywhere could enjoy fresh muffins without starting from scratch.

Soon after, restaurants and diners embraced muffins as part of the classic American breakfast. Whether served alongside coffee or as part of a bigger spread, muffins became iconic in their own right.


Modern Muffins: Healthier, Bigger, and Even More Creative

In recent decades, muffins have evolved once again. Health-conscious bakers began reimagining the classic muffin—cutting sugar, swapping out white flour, and adding in whole grains, seeds, and plant-based ingredients. Vegan, gluten-free, and allergy-friendly muffins started popping up, and now, just about anyone can enjoy a muffin that fits their needs.

At the same time, muffin sizes expanded—literally. Thanks to brands like Costco, the jumbo muffin became a household name. Rich, cake-like, and indulgent, these giant muffins blurred the line between breakfast and dessert, and their popularity hasn’t slowed down.

Today, muffins reflect our ever-changing tastes and values. Whether you prefer a simple bran muffin, a chocolate-packed copycat from your favorite wholesale store, or a nutrient-dense vegan option, muffins remain a delicious symbol of comfort and creativity. If you want to find out more about the history of title, here is where I found some of my information!


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Ingredients & Substitutes
  • Gluten-free flour with xanthan gum or guar gum
  • Super fine sugar or blended coconut sugar
  • Brown sugar or maple sugar
  • Cocoa powder
  • Baking powder (corn-free if needed)
  • Baking soda
  • Salt
  • Soy-free vegan butter or homemade top-8-free, legume-free, seed-free butter
  • Oat yogurt or homemade yogurt (legume-, corn-, and coconut-free)
  • Non-dairy milk
  • potato water (see notes for details)
  • Vanilla extract
  • Allergy-friendly chocolate chips for the batter
  • Allergy-friendly chocolate chunks for topping the muffins
How to Make Chocolate Muffins Costco Copycat

Preheat your oven to 350°F. Let it heat fully while you prepare the batter.

In a stand mixer or bowl, add all the dry ingredients. Start with the flour and end with the salt.

Mix on low speed until everything looks evenly blended.

Add the softened vegan butter. Mix until the texture becomes crumbly.

Now pour in the oat yogurt, non-dairy milk, eggs (or potato water), and vanilla.

Mix on medium speed until the batter is smooth and thick. It should scoop easily, not run.

If the batter seems dry, add a splash of milk or an egg white.

Scoop about 1/3 cup into each muffin tin. Line or lightly oil the tin first.

If using a loaf pan, pour the batter in and spread it evenly.

Sprinkle chocolate chunks on top of the batter.

Bake at 350°F for 30 to 32 minutes. The tops should be firm and edges slightly crisp.

Remove from the oven and let them cool in the pan for 3 to 4 minutes.

Then transfer them to a wire rack to cool completely.

Common Questions

1. Do these muffins actually taste rich without eggs, dairy, or nuts?

Absolutely! The combination of cocoa powder, brown sugar, and melted chocolate chips gives them a bold, fudgy flavor. You’d never guess they’re allergy-friendly.

2. What can I use if I don’t have oat yogurt?

No problem! I often swap it. I use homemade yogurt or even mashed banana or applesauce in a pinch. Just make sure whatever you use has enough moisture to keep the muffins soft.

3. Will they rise without eggs or gluten?

Yes, and that surprised me at first too. Thanks to the baking powder and soda, plus the right mixing technique, these muffins rise beautifully. They will hold their shape without any eggs or wheat.

4. Can I make these ahead of time?

Definitely. I usually bake a batch, let them cool. Then I store them in an airtight container for up to 3 days. They also freeze really well—just reheat for a few seconds in the microwave for that just-baked feel.

5. Do I have to use chocolate chips in the batter and on top?

Not at all, but I highly recommend it! The melted chips inside make every bite extra decadent. Meanwhile the chunks on top give them a bakery-style look and a satisfying texture.

Other Favorite Allergy Friendly Muffin Recipes

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Costco Copycat Chocolate Muffins (Dairy, Gluten, Egg, Nut, Soy Free)

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I used to eat Costco muffins growing up, before I had allergies. So, when I started having dietary restrictions I decided to try making my own copycat. These definitely lived up to my desires! Yum! Makes 12-14 muffins in 45 mins.



  • Total Time:
    0 hours


  • Yield:
    1214 1x

Ingredients


Scale
  1. 2 1/4 cups gf flour with xantham gum or guar gum 
  2. 1/2 cup super fine sugar (or 3/4 cup coconut sugar blended to a finer consistency)
  3. 3/4 cup brown sugar, OR maple sugar
  4. 1/2 cup cocoa powder
  5. 2 tsp baking powder, OR corn free here
  6. 1 tsp baking soda 
  7. 1/2 tsp salt 
  8. 1/2 cup soy free vegan butter, OR homemade (recipe is top 8 free, legume, and seed free)
  9. 1/2 cup oat yogurt, OR homemade yogurt (if legume, corn, and coconut free)
  10. 1 cup non dairy milk
  11. 2 eggs (add extra egg white if batter is too dry), OR 1/2 cup potato water *See notes on how to make
  12. 1 tsp vanilla  
  13. 6 oz enjoy life chocolate chips, for in batter
  14. 2 oz enjoy life mega chunk chocolate chips, for topping the muffins


Instructions

  1. Preheat oven to 350.
  2. Mix dry ingredients #1-7 in kitchen aid, add in butter, and then add the remaining ingredients #9-13.
  3. Scoop 1/3 cup of batter into each muffin tin or a 9×5 bread loaf pan lined or lightly oiled. Top the batter with mega chunk chocolate chips, as desired.
  4. Bake at 350 for 30-32 mins or till edges are slightly crispy to the touch.
  5. Let cool in tins 3-4 mins and then cool on racks.

Notes

*Instead of using eggs like most bread recipes, I like to use 1/2 cup potato water. (You can also use sweet potatoes or applesauce if nightshades are an issue; but it will not rise as much and may have an aftertaste). The potato water makes the final product taller, fluffier, and moist. To achieve this potato water, I mash up one small boiled potato with 1 cup water until you get a mushy runny paste (kinda like applesauce). I then use 1/2 cup of this mixture in the recipe. See picture below for the right consistency:

  • Author: Nikki
  • Prep Time: 15 min
  • Cook Time: 30-32 min

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