This baked chicken cordon bleu is an easy, no-fuss version of the classic, with juicy chicken breasts stuffed with ham and Swiss cheese, then baked until tender and melty. It’s a comforting dinner that feels special without extra work.
Set out the toothpicks you’ll need ahead of time and place them on a small plate. It keeps things tidy and avoids digging into the box with raw chicken hands.
This recipe works with either chicken thighs or chicken breasts. I prefer boneless, skinless thighs because they stay juicier, but breasts are a fine substitute if that’s what you have.
When it comes to ham, any good-quality sliced ham will work. Black Forest ham is my favorite for its deeper, slightly smoky flavor.
Swiss cheese is classic in chicken cordon bleu, though Muenster or provolone make excellent alternatives if you want to switch things up.
If you’re using thighs, look for boneless and skinless pieces and trim away any excess fat before assembling the dish.
Mustard sauce tips
Don't let the butter brown when starting the mustard sauce.
When you are whisking in the flour, make sure to cook it for 2 minutes.
When you add the remaining ingredients, whisk until the sauce thickens.