-
1
Preheat the oven to 325u00b0 F. Line two 12-cup muffin pans with paper liners (or grease the wells).
-
2
Whisk together 3 cups flour, salt, 2 tsp cinnamon, ginger, nutmeg, cloves, baking powder, and baking soda in a large bowl and set aside.
-
3
In a separate bowl or in a stand mixer, cream together the white sugar and 12 tablespoons butter until light and fluffy. Add the eggs one at a time, mixing after each addition.
-
4
Add the pumpkin, evaporated milk, 1/4 cup water, and vanilla, mixing after each addition. Add the dry ingredients and beat until just combined.
-
5
Divide the batter evenly between the muffin liners (the batter should come almost 3/4 of the way up to the top of the wells but no higher).
-
6
Make the streusel topping: Mix together 1 cup flour, 8 tablespoons butter, brown sugar, and 1 tsp cinnamon with a fork (or your fingers) until evenly crumbly. Crumble the streusel liberally over each muffin. (Optional: You can double the streusel and bake some off in a sheet pan, for topping yogurt, oatmeal, or anything else you please!)
-
7
Bake for 25 to 35 minutes, or until lightly golden brown and set it in the center. Remove from the oven and let cool in the pan fully before filling with the frosting.
-
8
Make the filling: Beat together all the ingredients in a clean stand mixer bowl, using the whisk attachment, until smooth and fluffy. Transfer the frosting into a piping bag fitted with a round or star tip (a small tip works best here) and carefully insert the tip into the center of the muffin top. Pipe slowly, pressing frosting into the muffin until it begins to bulge slightly. Remove the tip carefully so you don't disturb much of the streusel topping. Repeat with the remaining muffins. (If the icing is showing through on the top of the muffin, you can top with extra streusel.)
