CRUST:

1 box yellow cake mix
1/2 c. butter
1 egg

FILLING:

2 c. cooked, mashed pumpkin (or use canned)
1/2 c. butter
1/2 c. firmly packed brown sugar
2/3 c. pina colada mixer
2 eggs
1/4 tsp. ground cinnamon

CARAMEL PECAN CRUNCH TOPPING:

1 c. firmly packed brown sugar
1/3 c. all-purpose flour
1/3 c. butter
1 c. chopped pecans
Confectioners' sugar

Preheat the oven to 350 degrees. Lightly grease a 9 x 13 x 2 inch baking pan. In a large bowl, combine the cake mix and 1/2 cup butter. Cut the butter into the cake mix until the mixture looks like meal. Add the egg and beat until the mixture clings together. Press into the prepared pan.

In another large bowl, combine all the filling ingredients. Beat until smooth. Pour over the cake mix layer. In a small bowl, combine the topping ingredients, except confectioners' sugar. Using the fingertips of a fork, mix until crumbly. Sprinkle over the pumpkin layer. Bake for 40 to 45 minutes or until set. Cook completely. Sprinkle generously with confectioners' sugar.