Peanut Butter Sheet Cake
["2 c. plain flour", "1/2 Tbsp. salt", "1 c. water", "2 eggs, well beaten", "1/2 c. buttermilk", "2 c. sugar", "2 sticks margarine", "3/4 c. peanut butter", "1 tsp. baking soda", "1 tsp. vanilla"]
["Sift flour and measure and sift again with sugar and salt. Put water, margarine and peanut butter in saucepan and bring to a boil.", "Pour over flour mixture.", "Mix well.", "Combine eggs, soda, buttermilk and vanilla; mix well.", "Add to peanut butter mixture and blend well.", "Pour into large sheet cake pan and bake 20 minutes at 350\u00b0.", "Start making icing 5 minutes before cake is done.", "Punch holes in cake with fork as soon as it comes out of oven.", "Frost while hot with Peanut Butter Frosting."]
["flour", "salt", "water", "eggs", "buttermilk", "sugar", "margarine", "peanut butter", "baking soda", "vanilla"]