Rhubarb Crumble
["1 c. flour", "1/2 tsp. salt", "1/2 c. sugar", "1 c. oatmeal", "1/2 c. melted butter"]
["Mix together; press 1/2 in 9-inch pie plate.", "Save remaining for top."]
["flour", "salt", "sugar", "oatmeal", "butter"]