Ingredients

1 3/4 cups oil
3 large eggs
2 cups sugar
3 1/2 teaspoons vanilla, divided
3 cups flour
1 teaspoon baking soda
1 teaspoon cinnamon
2 Granny Smith apples, peeled and chopped
1 cup walnuts, chopped, optional
3/4 cup butter
1 1/2 cups brown sugar
6 tablespoons milk
3 cups powdered sugar (3 - 3 1/2 cups)

Instructions

Mix oil, eggs, sugar and 2 teaspoons vanilla. Add flour, baking soda and cinnamon. Then add apples and nuts. Pour into a
greased 10x15-inch baking pan. Bake at 350 degrees F for 45 minutes until a toothpick inserted comes out clean. Remove from oven and cool completely. Melt butter in a medium saucepan. Add brown sugar and cook 2 minutes. Add milk and bring to a boil. Cool to warm stage and add powdered sugar. Beat, then add 1½ teaspoons vanilla and mix well. Spread caramel frosting on cooled brownies.