Impossible pie

I have here, in Sue Gillespie’s handwriting, a receipt for Impossible Pie.

4 eggs
1/4 cup margarine
1/4 cup white sugar
1/2 cup flour
1/4 tsp salt
2 cups milk
1 cup feather strip coconut
1 tsp vanilla

blend ingredients in blender
pour into 10 inch greased deep pie dish
sprinkle with coarsely chopped pecans
bake at 350F for an hour