1 c. flour
1 stick butter
1/2 c. chopped nuts

Mix well and spread in 9 x 13 inch pan. Bake 15 minutes at 350 degrees. 1 c. powdered sugar 1/2 pkg. lg. Cool Whip

Mix and spread over crust. 2 (3 ounce) packages pistachio pudding, mix with 3 cups milk and beat 4 minutes. Pour over second layer. Spread with remaining Cool Whip. Refrigerate.