Chess Pie Bars
["1 c. plain flour", "1/2 c. soft butter", "3 Tbsp. sugar", "1 c. brown sugar", "1/2 c. sugar", "1 Tbsp. flour", "3 eggs", "3 Tbsp. melted butter", "1/2 tsp. vanilla"]
["Mix first 3 ingredients. Put in bottom of 8 x 8 pan. Bake at 350\u00b0 for 15 to 20 minutes. Mix brown sugar, 1/2 cup sugar and flour. Add to beaten eggs. Add melted butter and vanilla; mix well. Pour over baked pastry. Bake at 350\u00b0 for 25 to 30 minutes."]
["flour", "butter", "sugar", "brown sugar", "sugar", "flour", "eggs", "butter", "vanilla"]