Impossible Pina Colada Pie

1/4 cup milk
1/4 cup rum
2 tablespoons margarine, softened
4 eggs
1 (15 ounce) can cream of coconut
1 (8 ounce) can crushed pineapple, well drained
2 cups flaked coconut
1/2 cup Bisquick

Heat oven to 350 degrees F. Grease a 10 x 1 1/2-inch pie plate.

Beat all ingredients, except 1 cup coconut, 30 seconds in blender on high or 1 minute with hand beater. Pour into pie plate. Sprinkle with reserved coconut. Bake until knife inserted in center comes out clean, 40 to 45 minutes.

Garnish with sliced pineapple and whipped cream, if desired. Keep refrigerated.