Step 1

Preheat the oven to 400°F (200°C). Grease a 12-cup muffin tin with nonstick spray.

Step 2

Unroll the pie dough and use a 4-inch (10 cm) round cutter to cut out 12 circles.

Step 3

Place each dough circle in a cup of the prepared muffin tin, pressing firmly against the sides to keep in place. Chill in the refrigerator for 15 minutes.

Step 4

Make the filling: In a large bowl, mix together the apples, cinnamon, sugar, cornstarch, and melted butter.

Step 5

Scoop ⅓ cup of filling into each crust cup.

Step 6

Bake until the edges of the crust begin to crisp and the apples begin to soften, about 15 minutes.

Step 7

Meanwhile, make the crumble topping: In a medium bowl, mix together the cookie crumbs, brown sugar, nutmeg, and melted butter.

Step 8

Remove the mini pies from the oven and top each with about 1 tablespoon of the crumble topping, covering completely.

Step 9

Return to the oven and bake until crumble is golden brown, about 5 minutes. Let cool for about 10 minutes before serving.

Step 10

Enjoy!