Homemade Cream of Chicken Soup

Simmer: In a medium saucepan or skillet, bring the broth and the seasonings to a simmer over medium heat.
Whisk: In a small bowl, whisk together the flour and milk until incorporated and smooth.
Thicken: Slowly pour in the milk and flour mixture then whisk until it starts to thicken about 2-3 minutes.
Season: Remove from the heat and salt and pepper to taste.