You can use rhubarb leaves as garden mulch or compost them. [5] X Research source
As an optional seasoning, add a pinch of cinnamon to the mixture.
Stir the mixture with a heavy spoon or spatula every few minutes to help the rhubarb cook.
For thinner pieces, try chopping your rhubarb on a diagonal.
To make it easier to coat the rhubarb pieces, try sprinkling a few drops of water over them before adding the sugar.
If the sugar is not dissolved after a few hours, try leaving it in the fridge overnight. Cover the dish with plastic wrap before refrigerating it.
If the fork does not pierce the rhubarb easily, put it back in the oven in 5-minute increments until it is cooked through.
As you start to prepare your pie ingredients, preheat your oven to 375 °F (191 °C).
Pre-made pie crust will usually be sold in packages of 2.
If desired, dip a pastry brush in milk and coat the top of the pie with it. Sprinkle it with a pinch of granulated sugar.
Let the pie cool on a wire rack before serving it.