Oatmeal Fudge Bars (Puddles)

Ingredients:
2 C brown sugar, packed
3/4 C margarine (softened)
2 eggs
2 tsp vanilla

2 1/2 C Bisquick
3 C oatmeal

Filling Ingredients:
1 pkg milk chocolate chips
1 can sweetened condensed milk
1 tsp vanilla
2 T margarine
1/2 tsp salt
1 C nuts (optional)

Directions:
Heat oven to 350. Grease cookie sheet.
Mix first 4 ingredients together. Stir in Bisquick and oatmeal.
Press 3/4 of the mixture into pan. Heat the filling ingredients together over medium-low heat, stirring constantly til melted (can add 1 T hot water to make filling more gooey). Spread over oatmeal base. Drop remaining mixture from the first 2 steps on top. Bake for 30 min.