graham crust
2 tablespoons unsalted butter, melted
1/2 cup graham cracker crumbs

cupcakes
1 1/3 cups loosely packed brown sugar
1 large egg
2 teaspoons vanilla extract
1/2 cup unsalted butter, melted and cooled
3/4 cup pumpkin puree
1 1/4 cups all-purpose flour
1 teaspoon baking soda
1 teaspoon baking powder
1/4 teaspoon salt
1/2 teaspoon pumpkin pie spice
1/2 cup milk

fudge ganache filling
4 ounces chopped milk chocolate
2 tablespoons heavy cream

marshmallow frosting
4 large egg whites
1 cup granulated sugar
1/4 teaspoon cream of tartar
1 teaspoon vanilla extract