Serve over pasta, polenta, rice, garlic-rubbed croutons, or in popovers. For more intense flavor, soak ½ ounce dried mushrooms, such as porcini, then chop and add with the fresh mushrooms; use the strained soaking water for part of the liquid.
Heat in a large saucepan over medium-high heat:
Add and cook, stirring, until golden, about 8 minutes:
Stir in:
Cook until they begin to release their liquid, about 5 minutes. Add:
Cook, stirring, until the mixture begins to brown, another 5 minutes. Add:
Bring to a boil, reduce the heat to medium-low, and simmer for 10 minutes. Gradually stir in:
Add:
Garnish with: