Belgian Chicken Waterzooi

• 2 leeks
• 2 large carrots
• 2 celery stalks
• 4 chicken breasts
• 2 tablespoons butter
• 1 onion, chopped
• 4 cups chicken broth, divided
• 1 cup heavy cream
• 2 tablespoons corn starch
• 1 egg yolk
• 1 handful fresh parsley, chopped

1. Peel and wash the leeks, then chop them into thin slices. Dice the carrots and celery.
2. Cut the chicken breasts into medium slices, about 1/2-inch thick.
3. In a deep pot, melt the butter and saute the vegetables and the onion for 10 minutes. Add enough chicken broth to just cover the vegetables and bring to a boil, uncovered.
4. Add the chicken breast and cover the pot. Poach the chicken on medium heat for approximately 20 minutes, or until the chicken is cooked through. Remove the chicken and set aside. Drape some aluminum foil over top to keep it warm.
5. In a bowl, whisk the cream, cornstarch, and egg yolk. Add this mixture to the broth and vegetables. Add more broth to thin the mixture as desired. Stir constantly until the waterzooi thickens.
6. Add the chicken, season with salt and pepper, and cook for 2 to 3 more minutes at a low simmer.
7. Serve in soup plates, topped with fresh parsley

leeks, carrots, celery stalks, chicken breasts, butter, onion, chicken broth, heavy cream, corn starch, egg yolk, handful fresh parsley

Taken from food52.com/recipes/19840-belgian-chicken-waterzooi (may not work)