Start by placing your 2 cups of apples, 1 tbsp sugar, and 1 tsp cinnamon into a small saucepan and cooking on medium heat for about 10-15 minutes or until apples are fork-tender but not mushy. Take off heat and let cool
Preheat oven to 350℉
Cream together butter and sugar for 3 minutes, or until lightened in color and fluffy. Add eggs and vanilla. Beat till combined. Add salt, cinnamon, allspice, and apple butter. Beat till combined
Add flour and baking powder and gently fold until most of the flour is saturated. Add your apples and milk and continue folding only until everything is combined and no floury bits remain
In a separate small bowl, combine brown sugar and cinnamon for the topping.
Scoop evenly among your 12 cupcake liners. Sprinkle sugar topping evenly over unbaked muffins
Bake for 20-25 minutes or until a toothpick entered into the center comes out clean
Optional: Combine powdered sugar and milk in a small bowl and drizzle over the warm fresh-baked muffins