2 sticks butter
2 c. flour
1/2 c. oatmeal
1/2 c. brown sugar
1 tsp. salt

Melt butter and mix with other ingredients. Spread on cookie sheet and bake at 350 degrees for 15 minutes or until lightly browned. Cool and crumble. Butter a large Pyrex dish and add part of crumbs until they're 1/4 inch thick. Pour 1 jar Kraft Caramel Ice Cream Topping over the crumbs. Spread with 1/2 gallon vanilla ice cream (slightly softened). Top with remaining crumbs and chopped walnuts. Freeze.

Set out dessert for a few minutes to soften before trying to cut and serve.