In a bowl, mix together the rhubarb, 1/2 cup sugar, 2 tablespoons flour, nutmeg and ginger. Spread evenly into the unbaked pie shell.
In a medium bowl, blend together the butter, 1/2 cup sugar, eggs, 1/4 cup flour, cinnamon and salt. Slowly blend in the milk. Pour over the rhubarb in the pie shell.
Bake in preheated oven for 45 minutes, or until a knife inserted into the center of the pie comes out clean.
Interesting Facts
Rhubarb plants are native to Europe and Asia.
Rhubarb is a perennial vegetable, meaning it will come back year after year.
Rhubarb is a good source of dietary fiber, vitamin C, calcium, and potassium.