
Brown the butter: In a large pot, heat the butter over medium heat until it begins to brown and turns fragrant, 3 to 4 minutes. Add the sage and cook one minute more.
Sauté the mushrooms: Add the mushrooms and stir to coat, then sauté until the mushrooms are tender and lightly browned, 4 to 5 minutes.
Add the broth and chicken. Bring to a boil and then reduce to a simmer.
Stir in the cream and serve