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Could this be the recipe?
2 sticks butter
2 c. sugar
1 can evaporated milk
1 tbsp. vanilla
Preheat oven to 350°
Mix the melted butter with the sugar. Once combined mix in thoroughly the four eggs then add the evaporated milk and vanilla. Pour this mixture into 2 single pie shells or one deep dish shell.
Bake 40 minutes or until pie does not bubble anymore.