French Jam Pie
["1 c. plum or grape jam", "3/4 c. soft butter", "3/4 c. sugar", "3 eggs", "1/2 c. milk", "1 1/2 c. flour", "1/2 tsp. vanilla", "8-inch pastry"]
["Line 8-inch pan with pastry and flute edges.", "Spread jam onto crust."]
["grape jam", "butter", "sugar", "eggs", "milk", "flour", "vanilla", "pastry"]