Hot Fudge Sundae Cake
["1 c. flour", "3/4 c. brown sugar", "2 Tbsp. cocoa", "2 tsp. baking powder", "1/4 tsp. salt", "1/2 c. milk", "2 Tbsp. salad oil", "1 tsp. vanilla", "1 c. chopped nuts (optional)", "1/4 c. brown sugar", "1/4 c. cocoa", "1 3/4 c. hot tap water", "favorite ice cream"]
["In ungreased 9-inch square cake pan, sift together first 5 ingredients.", "Mix in milk, oil and vanilla with fork until smooth. Stir nuts.", "Spread evenly in pan.", "Sprinkle with brown sugar and cocoa.", "Pour on hot water.", "Bake 40 minutes in 350\u00b0 oven.", "Remove and let stand 15 minutes.", "Serve warm or cold with ice cream. Spoon sauce over each."]
["flour", "brown sugar", "cocoa", "baking powder", "salt", "milk", "salad oil", "vanilla", "nuts", "brown sugar", "cocoa", "water", "favorite ice cream"]