Gruyere and Broccoli Gratin

-3 bunches of broccoli
-1/2 stick of butter (4 tablespoons)
-1/4 cup of flour
-2 cups of skim milk
-8 oz of Gruyere Cheese (grated)
-pinch of red pepper flakes
-salt and black pepper to taste

1. Preheat oven to 375. Fill a wok with water and cover with a bamboo steamer. Place the broccoli in the steamer. Steam until the broccoli turns bright green. Remove from heat and place the broccoli in a rectangular baking dish.

2. In a sauce pan, melt the butter. Add the flour and stir for about two minutes. Do not let the flour/butter mixture burn. Whisk in milk and cook until sauce is thickened. Remove from heat and stir in 4 ounces of Gruyere. Pour the mixture over the broccoli. Sprinkle with salt, pepper and red pepper flakes. Stir.

3. Spread the remaining 4 ounces of cheese over the top of the broccoli. Bake until cheese is golden colored, about 40 minutes.