Promised Land CSA » Rhubarb custard pie

Ingredients

• 1 9-inch pie crust
• 3 cups fresh rhubarb, cut into 1/2-inch pieces (or 3 cups frozen, thawed)
• boiling water
• 3 egg yolks, beaten
• 2/3 cup warmed honey
• 3 tablespoons whole wheat pastry flour
• pinch of salt
• 3 egg whites, beaten stiff
• 1 tablespoon butter