Follow these steps to create Pretzel Chicken with Mustard-Cheddar Sauce effortlessly:

1. Preheat Oven: Preheat your oven to 375°F (190°C).
2. Prepare Chicken: Place the chicken breasts between two sheets of plastic wrap. Use a meat mallet to pound them to an even thickness.
3. Set Up Breading Stations: In one bowl, add the flour. In a second bowl, whisk the eggs. In a third bowl, combine the crushed pretzels, garlic powder, onion powder, smoked paprika, salt, and pepper.
4. Coat Chicken: Dip each chicken breast into the flour, then the eggs, and finally coat it with the pretzel mixture. Ensure even coverage.
5. Arrange in Baking Dish: Place the coated chicken in a greased baking dish, evenly spaced.
6. Bake Chicken: Bake in the preheated oven for 30-35 minutes or until the chicken reaches an internal temperature of 165°F (74°C) and is golden brown.
7. Prepare Sauce: While the chicken bakes, combine the Dijon mustard and heavy cream in a saucepan over medium heat. Stir continuously until warmed through, then add the shredded cheddar cheese, mixing until melted and smooth.
8. Serve Chicken: Once the chicken is cooked, remove it from the oven and let it rest for 5-10 minutes.
9. Plate and Drizzle: On a serving plate, arrange the chicken and pour the mustard-cheddar sauce over the top.
10. Garnish: If desired, sprinkle with fresh parsley for color and added flavor.

These straightforward steps will guide you through creating this impressive and delicious dish without a hitch!