Creating Pretzel Chicken with Mustard-Cheddar Sauce can be straightforward if you follow these steps:

1. Preheat the Oven: Preheat your oven to 400°F (200°C) and prepare a baking sheet lined with parchment paper.
2. Prepare the Chicken: Pat the chicken breasts dry with paper towels. This helps the coating stick better.
3. Set Up the Breading Station: In three separate shallow dishes, place the flour, beaten eggs mixed with 1 tablespoon of Dijon mustard, and pretzel crumbs seasoned with garlic powder, onion powder, smoked paprika, salt, and black pepper.
4. Coat the Chicken: Dip each chicken breast into the flour, shaking off excess. Then, coat in the egg mixture, and finally roll in the pretzel crumbs until fully coated.
5. Arrange on Baking Sheet: Place the coated chicken breasts on the prepared baking sheet.
6. Bake the Chicken: Bake in the preheated oven for 30-35 minutes or until the chicken is cooked through and the coating is golden brown and crispy.
7. Prepare the Mustard-Cheddar Sauce: While the chicken is baking, combine the shredded cheddar cheese, milk, 2 tablespoons of Dijon mustard, and Worcestershire sauce in a small saucepan over low heat. Stir until the cheese is melted and the sauce is smooth.
8. Rest the Chicken: Once the chicken is done, remove it from the oven and let it rest for 10-15 minutes for the juices to redistribute.
9. Slice the Chicken: If desired, slice the chicken breasts to showcase the beautiful coating.
10. Serve with Sauce: Drizzle the mustard-cheddar sauce over the chicken just before serving.

These steps will guide you in creating an incredible dish that your family and friends will love!