Whip up a batch of white sauce as a meal prep and use it for various dishes! This versatile sauce becomes the creamy foundation for a French-style ham and cheese sandwich (croque monsieur), a quick ...

In a medium saucepan, heat the butter over medium-low heat until melted and the foaming subsides. (Do not let it brown.) Whisk in the flour until well combined. Cook, whisking constantly, until the ...