Peanut Butter Bars
["1/2 c. peanut butter", "1/2 c. butter", "1 c. flour (self-rising)", "2 eggs", "1 1/2 c. sugar", "1 tsp. vanilla"]
["Heat oven to 350\u00b0.", "Grease and flour a 9 x 13 x 2-inch pan. Melt peanut butter and butter together in a bowl over boiling water.", "Mix other ingredients.", "Bake for 25 to 30 minutes."]
["peanut butter", "butter", "flour", "eggs", "sugar", "vanilla"]