1: Melt 6 tablespoons of butter in a small saucepan.
2: Stir in 2/3 cup of all purpose flour, stirring constantly until it forms a paste.
3: Whisk in 2/3 cup of chicken stock and 2/3 cup of milk.
4: Continue to whisk for several minutes, smoothing out the flour and scraping down the sides of the pan.
5: Add 1/4 teaspoon of garlic, black pepper, and salt (to taste).
6: Whisk until smooth and creamy.