Norwegian White Sauce - cooking recipe

Ingredients

2 cups whole milk
1 small onion, chopped
1 bay leaf
1 dash cayenne
4 tablespoons butter
3 tablespoons flour
salt
white pepper (optional)
1/2 cup frozen sweet peas, cooked (optional)

Preparation

In a medium sauce pan simmer milk on medium-low heat.
Add the onion, bay leaf and cayenne. Simmer for a few minutes stirring constantly to prevent scorching.
Strain the milk into a bowl and discard the onion and bay leaf.
Melt the butter in the sauce pan and whisk in flour until thick, this is called the roux.
Stir in the milk and simmer until the desired consistancy is reached (5-10 mins). Sauce will thicken as it stands.
Salt and pepper to taste.
Stir in peas if desired.