Bechamel Sauce

Name: Bechamel Sauce
Prep time: 5 min
Cook time: 10 min
Total time: 15 min
Cuisine: French
Ingredients: 3 tablespoon butter (unsalted); 3 tablespoon all-purpose flour (all purpose); 2 cups milk; 1/8 teaspoon nutmeg; 1/4 teaspoon salt (or to taste)