Impossible Coconut Pie

This pie is named "impossible" because it makes its own crust.  You can omit the coconut for an egg custard variety.

4 eggs, beaten
1 3/4 cup sugar
1/2 cup self rising flour
2 cups milk
1/2 t. vanilla
1/2 stick melted margarine
1 can flaked coconut
 (or 2 cups)

Blend sugar and flour, stir in eggs then remaining ingredients. Pour into two greased 9 inch pie pans. Bake at 350 for 30-40 minutes until coconut is browned and pie is set.