Chocolate Revel Bars

1 cup butter or margarine, softened
2 cups brown sugar
2 eggs
2 tsp. vanilla
2 1/2 cups flour
3 cups quick oats
1 tsp. baking soda
1 tsp. salt
1 bag chocolate chips
2 tbsp. butter
1 14 oz. can sweetened condensed milk
1 cup chopped walnuts (optional)
2 tsp. vanilla
1/2 tsp salt

Cream butter and brown sugar until fluffy; beat in eggs and 2 tsp. vanilla.

Stir together oats, flour, soda and 1 tsp. salt; stir into creamed mixture until blended. Set aside.

Over low heat combine chocolate chips, 2 tbsp. butter, sweetened condensed milk and 1/2 tsp. salt. Stir until smooth then add nuts and 2 tsp. vanilla.

Pat 2.3 of the oat mixture into a 15x10 baking pan. Spread chocolate mixture over oat layer then sprinkle chocolate layer with remaining oat mixture.

Bake at 350 for 25-30 minutes.