Ingredients Original recipe yields 8 servings Ingredient Checklist 1 cup white sugar 2 tablespoons all-purpose flour 1 egg ½ teaspoon vanilla extract ¾ cup all-purpose flour ½ cup brown sugar ⅓ cup butter, softened 2 cups 1-inch pieces rhubarb 1 (9 inch) unbaked pie crust Directions Instructions Checklist Step 1 Preheat the oven to 350 degrees F (175 degrees C). Step 2 Mix white sugar, 2 tablespoons flour, egg, and vanilla in a small bowl until combined. Step 3 Place 3/4 cup flour, brown sugar, and butter in another small bowl; mix until crumbly. Step 4 Place rhubarb into pie crust. Pour white sugar mixture over the rhubarb. Sprinkle with brown sugar mixture. Step 5 Bake in the preheated oven until filling is bubbly and crust is golden brown, 30 to 40 minutes.