2 whole eggs
1 1/2 c. sugar
1 1/2 tbsp. flour (rounded)
1/2 c. melted butter
1/2 c. buttermilk
1 tsp. vanilla

Beat eggs until fluffy. Add sugar and flour combined, then add butter and last buttermilk and vanilla. Pour in unbaked pie shell.

Bake 1 hour at 350°F.