15 ml olive oil, or as needed
4 (140 g) skinless, boneless chicken breasts
1 (130 g) can button mushrooms, drained
240 ml heavy cream
1 large egg yolk
15 ml Dijon mustard, or more to taste
salt and freshly ground black pepper to taste
480 ml hot cooked rice, or as needed
Step 1
In a skillet over medium-high heat, heat olive oil. Add chicken and sear until lightly browned, 2 to 3 minutes per side. Remove from the skillet and set aside.
Step 2
Add drained mushrooms to the skillet and cook until they start to sizzle and brown, about 5 minutes.
Step 3
In a small bowl, whisk together cream, egg yolk, Dijon mustard, salt, and pepper. Pour into the skillet with the mushrooms. Return chicken breasts to the skillet and simmer over medium-low heat, stirring occasionally to prevent the egg yolk from setting, until chicken is no longer pink in the center and the juices run clear, 15 to 20 minutes. An instant-read thermometer inserted into the center of the chicken breast should read at least 74 degrees C (165 degrees F).
Step 4
Serve the creamy Dijon chicken and mushrooms over hot cooked rice.