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4.34 from 3 votes

Copycat Costco Chocolate Muffins

Copycat Costco Chocolate Muffins taste just like the amazing double chocolate muffins from Costco. Easy chocolate chocolate chip muffin recipe that everyone loves!
Prep Time5 mins
Cook Time20 mins
Course: Muffins
Cuisine: American
Keyword: Copycat Costco Chocolate Muffins
Servings: 24 muffins
Calories: 246kcal


  • 3 eggs
  • 1/2 cup milk
  • 1/2 cup oil
  • 1/4 cup water
  • 1 tsp vanilla
  • 3/4 cup sour cream
  • 1 Devils Food cake mix
  • 3.4 oz pkg instant chocolate pudding
  • 1 tsp cinnamon
  • 2 cups semi-sweet chocolate chips divided


  • Preheat oven to 375° and line muffin tins with liners. (Should make about 24 regular sized muffins).
  • In a large bowl, lightly beat eggs. Add oil, milk, water, vanilla and beat again.
  • Stir in sour cream, and then add the cake mix, pudding mix and cinnamon, just mixing until barely combined. Do not over mix.
  • Stir in 1 1/2 cups chocolate chips and then fill muffin liners 3/4 full. Sprinkle remaining chocolate chips on top.
  • Bake for 15-20 minutes or until a toothpick inserted in the middle comes out clean. Remove immediately from muffin tins and let cool.


Calories: 246kcal | Carbohydrates: 25g | Protein: 3g | Fat: 15g | Saturated Fat: 5g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 6g | Trans Fat: 1g | Cholesterol: 26mg | Sodium: 223mg | Potassium: 179mg | Fiber: 2g | Sugar: 16g | Vitamin A: 91IU | Vitamin C: 1mg | Calcium: 54mg | Iron: 2mg