caramel apple oat squares Recipe

1 3/4 cup flour
1 cup quick cooking oats
1/2 cup firmly packed brown sugar
1/2 teaspoon baking soda
1/2 teaspoon salt
1 cup cold margarine or butter
1 cup chopped walnuts
20 caramels, unwrapped
1 (14 oz) can sweetened condensed milk
1 (21 oz) applie pie filling

Preheat oven to 375 degrees. Combine flour, oats, sugar, baking soda and salt; cut in margarine until crumbly. Reserving 1 1/2 cup mixture, press remainder on bottom of 13 x 9 pan. Bake 15 minutes. Add nuts to reserved crumb. In heavy saucepan over low heat melt caramels with sweetened condensed milk, stirring utnil smooth. Spoon apple filling over prepared crust, top with caramel mixture, then crumb mixture. Bake 20 minutes or till set. Cool. Serve warm with ice cream.