In a large mixing bowl combine dry cake mix, pumpkin pie spice, cinnamon, vegetable oil, and pumpkin puree. Stir together with a large spoon.
1 box spice cake mix, ½ teaspoon pumpkin pie spice, ½ teaspoon cinnamon, 1 tablespoon vegetable oil, 15 ounce can pumpkin puree
Place paper cups in a muffin tin pan and fill about 3/4 of the way with batter. Set aside.
In a separate mixing bowl combine flour, sugar, light brown sugar, pumpkin pie spice and melted butter. Stir to combine.
¾ cup all-purpose flour , ¼ cup granulated sugar, ⅓ cup packed light dark brown sugar, 1 teaspoon pumpkin pie spice, 6 tablespoons unsalted butter
Spoon a generous amount of streusel crumb topping over the top of the muffins. Using the back of your spoon push the streusel down into the pumpkin cake mix a bit.
Place in the oven and bake at 350 degrees for 23-25 minutes.
In a separate bowl add powdered sugar and milk. Whisk to combine.
1 cup confectioners’ sugar, 1 tablespoon whole milk
Remove muffins from the oven and allow to cool. Drizzle icing on the top and serve warm, or room temperature.
Notes
Storage:
Store: Keep in an airtight container at room temperature for 3–4 days. Place parchment between layers if glazed.
Reheat: Warm in the microwave for 10–15 seconds or in a 300°F oven for 5–7 minutes.
Freeze: Freeze cooled muffins (without glaze) for up to 2 months. Thaw overnight in the refrigerator and glaze before serving.
Tips:
Don’t overmix. Overmixing can make muffins dense
Use a cookie scoop to ensure even-sized muffins
Press streusel gently to help it bake into the top
Cool on a wire rack before adding icing for best results
Check doneness early and start a minute or two before time