Copycat Costco Chocolate Muffins

Oh boy! Have you ever been to Costco and tried their muffins?? All of them are equally amazing, but the chocolate one….that is in a league of its own! I prefer mine room temperature so the chocolate chips in it are still firm, however, I have several family members that prefer theirs warmed up and the chocolate oozing out! YUM!

Last night, I was in the baking mood and since I have been trying to eat better with my hubby (ugh for New Year’s resolutions, haha), I decided to make chocolate muffins for the kids and my hubby’s coworkers. After a few shortcuts (yes, this recipe uses cake mix), these muffins were created and the end result…..perfectly comparable to Costco muffins….just in mini size!

The muffin itself is moist, packed with chocolate chips/chunks, and quite flavorful. It is a great breakfast, snack, or sweet treat! I chose to make mini muffins so they were easier for my kids and coworkers to grab and go, however, you can also make these into normal muffins, just bake them a few minutes longer!

Either way, you no longer need to go to Costco each week for just the muffins, make these amazing treats in your own kitchen….with only a few quick steps!!



Copycat Costco Chocolate Muffins


  • 1 box Devil’s Food cake mix
  • 3 eggs
  • 1/4 cup milk
  • 1/3 cup oil
  • 1/4 cup sour cream
  • 2 tsp vanilla extract
  • 2 tbsp. flour
  • 1 tsp baking powder
  • 1 cup semi sweet chocolate chips
  • 1/2 cup dark chocolate chips

Copycat Costco Chocolate Muffins


  1. In a medium mixing bowl, add the cake mix (dry), eggs, milk, oil, sour cream, vanilla, flour, and baking powder.
  2. Mix until just combined.
  3. Fold in the chocolate chips (both kinds) and mix once more.
  4. Grease a mini muffin pan (or regular sized if preferred).
  5. Using a spoon, scoop the batter into each sprayed cup until 2/3 full.
  6. Once tray is full, place tray in preheated oven, 350, and bake for about 12-14 minutes.
  7. Remove tray from oven and allow to cool about 2-3 minutes before removing to cooling rack.
*Make about 50 mini muffins
** Recipe adapted from: Frugal Antics Recipes
Copycat Costco Chocolate Muffins
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