Pat the chicken dry with paper towels. Season both sides with salt, pepper, and garlic powder.
Heat olive oil in a large skillet over medium heat for 2 minutes.
Place the chicken in the pan. Cook 5–6 minutes per side until golden and cooked through (165°F inside). Remove it to a plate.
Add mushrooms to the same pan. Stir and cook for 5 minutes until soft.
Stir in minced garlic and cook for 30 seconds.
Pour in chicken broth and scrape the bottom of the pan with a spoon.
Add heavy cream and stir. Let it simmer 3–4 minutes.
Return the chicken to the skillet. Spoon sauce over it and cook 2 more minutes.