Make this recipe a recipe that people in that category can eat. categories: ['dairy_free'], recipe: mix egg, water, flour, sugar and butter together in a bowl. add rhubarb to mixture and mix well. pour filling into a pie crust and top with second pie crust. cut air vents in top crust. bake at 500 degrees for 5 minutes, then reduce heat to 400 degrees for 50 to 60 minutes, until it bubbles in the center.

Target recipe: preheat oven to 450°f. combine sugar, flour and egg;add to rhubarb. prepare pastry and line a 9" pie plate, reserving some for top crust. add rhubarb mixture and cover with top crust;seal and flute edges. make slits in top crust to allow steam to escape. if desired, make a lattice top with top crust. bake in oven for 10 minutes; reduce temperature to 350f and continue baking 40 to 50 minutes longer or until rhubarb is cooked and pastry is a golden brown.