1 egg, slightly beaten
1 c. sugar
3 tbsp. flour
1/2 to 1/4 c. water
1 tbsp. butter
3 c. rhubarb

Prepare 9 inch pie shell, unbaked

Cut rhubarb into 1/2 inch pieces. Mix all ingredients except rhubarb. Place cut rhubarb into shell. Then pour mixture over rhubarb. Bake at 375 degrees for 45 minutes.