Part 1: Prepare the Zucchini Noodles (The Key to Success!)

1. Spiralize: Wash and dry the zucchini. Trim off the ends. Using a spiralizer, create noodles from the zucchini. If you don’t have a spiralizer, you can use a julienne peeler or a mandoline with a julienne blade.
2. Sweat the Zoodles: Place the zucchini noodles in a colander set over a bowl or in the sink. Sprinkle them generously with 1 teaspoon of salt and toss gently to coat. Let them sit for 20-30 minutes. You will see a significant amount of water drip out. This is the most crucial step to prevent a watery sauce later.
3. Squeeze Dry: After 30 minutes, take handfuls of the salted zucchini noodles and gently squeeze them over the sink to remove as much excess water as possible. You can also press them between layers of paper towels or a clean kitchen towel. Set the dried zoodles aside.

Part 2: Cook the Chicken

1. Season: Pat the chicken breasts dry with a paper towel. In a small bowl, mix together the Italian seasoning, garlic powder, onion powder, ½ teaspoon of salt, and ½ teaspoon of black pepper. Rub this seasoning mixture evenly over all sides of the chicken breasts.
2. Sear: Heat 1 tablespoon of olive oil in a large, heavy-bottomed skillet or pan over medium-high heat. Once the oil is shimmering, carefully place the seasoned chicken breasts in the pan.
3. Cook: Cook for 5-7 minutes on each side, without moving them, until they are golden brown and cooked through. The internal temperature should reach 165°F (74°C) when checked with a meat thermometer.
4. Rest and Slice: Remove the chicken from the skillet and place it on a cutting board. Let it rest for at least 5-10 minutes. This allows the juices to redistribute, ensuring a tender, moist result. Once rested, slice the chicken into thin strips or bite-sized cubes.

Part 3: Make the Creamy Alfredo Sauce

1. Sauté Garlic: Using the same skillet you cooked the chicken in (do not wipe it out!), reduce the heat to medium. Add the 4 tablespoons of butter and let it melt. Add the minced garlic and sauté for about 30-60 seconds, or until fragrant. Be careful not to let it burn.
2. Add Cream: Pour the room temperature heavy cream into the skillet. Whisk it into the butter and garlic, scraping up any delicious browned bits (the fond) from the bottom of the pan.
3. Simmer: Bring the cream to a gentle simmer (do not boil). Let it simmer for 3-5 minutes, whisking occasionally, until it has thickened slightly.
4. Melt the Cheese: Reduce the heat to low. Slowly add the freshly grated Parmesan cheese, a little at a time, whisking continuously until the cheese is completely melted and the sauce is smooth and creamy. Whisking in the cheese gradually over low heat prevents it from clumping.
5. Season the Sauce: Whisk in the freshly grated nutmeg, salt, and black pepper. Taste the sauce and adjust the seasoning if necessary. Remember that the Parmesan is salty, so you may not need much additional salt.

Part 4: Combine and Serve

1. Warm the Zoodles: Add the prepared, dried zucchini noodles to the skillet with the Alfredo sauce. Use tongs to gently toss the noodles in the sauce for about 1-2 minutes, just until they are heated through. It’s very important not to overcook the zoodles, or they will become soft and release more water.
2. Add Chicken: Add the sliced chicken back into the pan and toss to combine everything.
3. Garnish and Serve: Immediately portion the Zucchini Noodle Alfredo onto plates. Garnish generously with fresh chopped parsley and an extra sprinkle of black pepper or Parmesan cheese. Serve hot.