In a small bowl, whisk together the Dijon mustard, honey, and dried Italian seasoning until smooth and evenly combined. Taste the mixture; it should be lightly sweet, tangy, and herbaceous.
Mustard, honey, and herbs being whisked into a smooth sauce
Mustard, honey, and herbs being whisked into a smooth sauce
Pour the mustard-honey mixture evenly over the chicken legs, using a spoon or spatula to nudge it into the nooks between pieces so each portion is coated on top. Do not stir; you want the chicken to remain in a single layer so it cooks evenly.
Cover the slow cooker with the lid and cook on LOW for 5 to 6 hours, or on HIGH for 2 1/2 to 3 hours, until the chicken is very tender and reaches an internal temperature of at least 165°F (74°C) in the thickest part without touching the bone. The meat should pull away from the bone easily.
Chicken legs cooking in the slow cooker under a glossy mustard glaze
Chicken legs cooking in the slow cooker under a glossy mustard glaze
Once cooked, carefully remove the chicken legs from the slow cooker using tongs, keeping the skin as intact as possible. If you like a slightly crisper top, you can place the legs on a foil-lined baking sheet and broil them 2 to 3 minutes, watching closely, just until the skin lightly browns.
While the chicken rests, skim off any excess fat from the surface of the cooking juices in the slow cooker with a spoon. Taste the sauce and adjust if needed by stirring in a touch more honey for sweetness or a teaspoon of Dijon for extra tang.
Cooked chicken legs resting on a foil-lined tray after slow cooking
Cooked chicken legs resting on a foil-lined tray after slow cooking
Transfer the chicken legs to a serving platter and spoon some of the warm mustard-honey-herb sauce over the top. Serve the remaining sauce on the side so everyone can help themselves—expect people to go back for seconds and thirds.
Variations & Tips
To keep this recipe firmly in the 4-ingredient realm, the base version stays very simple, but there are a few smart tweaks you can make while still honoring the spirit of the dish. For a subtle citrus note that leans into the spring theme, add 1 to 2 teaspoons of finely grated lemon zest to the mustard-honey mixture before pouring it over the chicken. If you prefer a little heat, stir in a pinch of red pepper flakes or a small spoonful of prepared horseradish.
Finished chicken legs on a platter with sauce spooned over the top
Finished chicken legs on a platter with sauce spooned over the top
For a slightly richer, silkier sauce, whisk in 1 to 2 tablespoons of cold unsalted butter into the hot cooking juices right before serving. If you need to stretch the meal for more people, you can add up to 1 extra pound of chicken legs; just be sure they still fit mostly in a single layer and extend the cooking time by about 30 minutes on LOW if the crock is very full.
