Chicken in Creamy Mustard Sauce

Recipe video above. Here's a really quick way to cook chicken thighs or breast in a simple yet elegant creamy mustard sauce. Mustard adds flavour as well as thickening the sauce while tarragon infuses the sauce with elegant aniseed notes, giving it a very restaurant-y flavour. But even if you don't have fresh tarragon or don't like it, this is absolutely still worth making. In fact, I've probably made it as often without tarragon as I have with!