Caramel Apple Cake

2 1/2 cups sugar
3 eggs
1 1/2 cups vegetable oil
2 teaspoons vanilla
3 cups flour
1 teaspoon cinnamon
1/2 teaspoon salt
2 cups diced apples
1 cup chopped walnuts

Caramel Topping:
1 1/2 sticks butter
1 cup brown sugar
1/8 cup milk

Preheat oven to 350 degrees F.  Butter and flour a 13x9-inch pan.

Place sugar, eggs, oil and vanilla in the bowl of a stand mixer and mix until mixture is light and fluffy.  Combine flour, cinnamon and salt and slowly add to sugar mixture until well combines.  Stir in apples and walnuts.  Pour batter into baking pan.  Bake for 45 to 60 minutes.  Poke holes in warm cake and pour caramel sauce over top.

Caramel Sauce:  In a saucepan melt butter with brown sugar and milk.  Bring to a boil and cook for 2 minutes.  If you are in a hurry you can use a purchased caramel sauce. (About 1 cup)