Copycat Costco Pumpkin Muffins

A hand holding a muffin with a crumb topping and powdered sugar.

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Costco is known for their delicious jumbo pumpkin muffins that everyone waits all year long for. These pumpkin muffins are tender, flavorful and topped with a crumb topping and plenty of powdered sugar. These are so easy to make at home and are the best Fall sweet treat!

Prep Time20

Cook Time30

Total Time50

Course: Appetizer, Breakfast, Dessert

Cuisine: American

Keyword: Pumpkin Muffin (Struesel)

Servings: servings

Calories: 525kcal

Ingredients

2 cups all-purpose flour
1 teaspoon baking soda
1 1/2 teaspoons cinnamon
1 1/2 teaspoons pumpkin pie spice
1/3 cup vegetable oil
1/2 cup sour cream
1/4 cup brown sugar
3/4 cup granulated sugar
2 eggs
15 ounce can pure pumpkin

Topping:

1/2 cup all-purpose flour
1/4 cup sugar
3 tablespoons brown sugar
1 teaspoon cinnamon
6 tablespoons butter softened
Powdered sugar for dusting

Instructions

Preheat oven to 350 degrees.
Line a 6-count jumbo muffin tin with jumbo muffin liners.
In a large mixing bowl, whisk together flour, baking soda, pumpkin spice, and cinnamon until combined.
2 cups all-purpose flour, 1 teaspoon baking soda, 1 1/2 teaspoons cinnamon, 1 1/2 teaspoons pumpkin pie spice
To that bowl add the oil, sour cream, brown sugar, granulated sugar, eggs and pumpkin. Mix together until just combined.
1/3 cup vegetable oil, 1/2 cup sour cream, 1/4 cup brown sugar, 3/4 cup granulated sugar, 2 eggs, 15 ounce can pure pumpkin
Divide the batter among the 6 muffins cups.

For the Streusel Topping

In a medium-sized mixing bowl add ½ cup flour, ¼ cup granulated sugar, 3 tablespoons brown sugar and 1 teaspoon cinnamon, and 6 Tablespoons butter. Using two knives or a pastry cutter, combine ingredients until a coarse crumbs forms.
1/2 cup all-purpose flour, 1/4 cup sugar, 3 tablespoons brown sugar, 1 teaspoon cinnamon, 6 tablespoons butter
Sprinkle the crumb topping on top of each muffin.
Place in the oven and bake for 25-30 minutes when a toothpick inserted in the middle comes out clean.
Remove from the oven and let cool.
Dust the tops with powdered sugar, if desired.
Powdered sugar for dusting

Notes

Storage:

Store leftovers in an airtight container or wrapped in plastic wrap in the refrigerator for up to 3 days.

Freeze: To freeze your pumpkin muffins, let them cool completely after baking. Once cool, wrap each muffin tightly in plastic wrap and place them in a resealable freezer bag or airtight container. Label the bag with the date and store them in the freezer for up to three months. Simply thaw them at room temperature or reheat them in the microwave or oven.

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