1 3/4 c. unsifted flour
1 c. quick cooking oats
1/2 c. packed brown sugar
1/2 tsp. baking soda
1 (14 oz.) can sweetened condensed milk
1/2 tsp. salt
1 c. cold butter
1 c. chopped walnuts
20 caramels
1 (21 oz.) can apple pie filling

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