Prepare the rhubarb and then sprinkle well with flour and add sugar, and cook slowly until tender. The flour will thicken the mixture. Then pour into the prepared pie plate and cover with pastry. Bake in a moderate oven for twenty minutes. Pie made in this way will be far superior to that made where the rhubarb is cut and placed in the pie and then cooked.
Foods That Will Win The War And How To Cook Them (Year 1918)
by C. Houston Goudiss and Alberta M. Goudiss