Cream together until light and fluffy:
1 c. butter
2 c. brown sugar
Beat in:
2 eggs
2 t. vanilla
Combine into creamed mixture:
3 c. oats
2 ½ c. flour
1 ½ t. salt
1 t. baking soda
Press two-thirds of oat mixture into a greased 15×10 in. baking pan.
Combine in saucepan:
1 can (14 oz.) sweetened condensed milk
2 T. butter
2 c. chocolate chips
Cook and stir over low heat until chocolate is melted.
Remove from the heat; stir in:
1 c. chopped walnuts
2 t. vanilla
Spread over crust. Sprinkle with remaining oat mixture.
Bake at 350 for 25 minutes or until golden brown. Cool on a wire rack. Cut into squares.