Rhubarb Custard Pie

Ingredients

• 1 3/4 cups sugar
• 2 pounds fresh rhubarb
• 1 teaspoon vanilla
• 2 tablespoons butter
• 4 tablespoons flour
• 1/4 teaspoons cinnamon
• 2 unbaked pie shell
• 2 eggs
• 3 tablespoons milk