Blackberry Custard Pie... Ingredients: 1 unbaked 9 inch pie shell; 2 c. fresh blackberries; 4 eggs; 2/3 c. sugar; 1 1/3 c. milk; 1 tsp. vanilla; Sprinkle blackberries in bottom of pie shell. Mix beaten eggs, sugar, milk and vanilla together and pour over blackberries. Bake at 400 degrees until custard tests done with a knife coming clean when stuck halfway between the rim and the middle.