Once the mushrooms are soft and golden, I take the skillet off the heat and carefully pour in the Marsala wine and chicken broth. Then, I return the skillet to medium heat. Using a wooden spoon or spatula, I scrape up all the browned bits stuck to the bottom — those bits are pure flavor gold.
Next, I stir in the minced garlic and butter, letting them melt into the sauce. The garlic adds a punch of flavor while the butter brings a silky richness.
If I’m in the mood for a creamier version, I add a splash of heavy cream here. It’s totally optional, but it gives the sauce a velvety texture and a mellow finish that pairs beautifully with the Marsala.
I let the sauce simmer for about 5 to 8 minutes, or until it thickens slightly. The goal is a glossy, flavorful sauce that clings to the chicken without being too heavy.
Once the sauce has thickened, I return the chicken to the skillet. I spoon the sauce generously over the top and let everything simmer together for 2 to 3 more minutes. This gives the chicken a chance to soak up all those incredible flavors.