Rhubarb Crisp - cooking recipe

Ingredients

1/2 cup butter, melted
1 1/2 cups old-fashioned oatmeal
2/3 cup brown sugar
1/2 cup flour
3 cups rhubarb, cut in 1 inch pieces
1 cup sugar
1 1/2 tablespoons flour

Preparation

Mix the 4 first ingredients. Put 3/4 of the mixture in the bottom of a deep medium dish. Cover with the rhubarb.
Mix sugar and flour and sprinkle on the rhubarb. Spread the remaining (1/4) of the first mixture on top of the rhubarb.
Cook in oven at 350 F for 45 minutes.