Purple Plum Pie

3 cups fresh purple plums
3/4 cups sugar
3 tablespoons whole wheat flour
1 teaspoon cinnamon (optional)
1 tablespoon lemon juice
1 tablespoon butter
Whole wheat oil pastry for double crust pie

Preheat oven to 425. Then, rinse and halve or quarter the plums, discarding the pits! Combine sugar, flour and cinnamon (I like to use my hands!) and sprinkle mixture over the fruit. Make a pie crust pastry and line your favorite pie plate. Fill with sugared + spiced plums. Sprinkle with lemon juice and dot with butter. Roll out and place top crust. Seal edges with fork and poke a decorative vent in the top. Bake at 425 degrees for 35 to 40 minutes, or until golden brown.
This is delicious, and simple. You can even increase the plums to 4 cups and adjust the rest of the ingredients by 1/4 too, if you have a mathematician nearby to help! Use a large pie tin.