1/3 cup spicy brown mustard |
2 tablespoons brown sugar |
3 tablespoons maple syrup |
2 tablespoons yellow mustard |
1 tablespoon grated onion |
1 tablespoon cider vinegar |
2 teaspoons lower-sodium soy sauce |
1/2 teaspoon black pepper |
1 garlic clove, minced |
8 bone-in chicken thighs, skinned |
1/4 teaspoon kosher salt |
cooking spray |