Make-Ahead Gravy

Directions

1. 1
   Place porcini mushrooms in bowl, and cover with 2 cups boiling water.
2. 2
   Let stand 15 minutes.
3. 3
   Remove porcini and squeeze liquid back into bowl; coarsely chop porcini.
4. 4
   Reserve liquid.
5. 5
   Coat skillet with olive oil cooking spray and heat over medium heat.
6. 6
   Add cremini mushrooms, shallots, garlic, and porcini, and saute 2 minutes.
7. 7
   Cover, reduce heat to low, and cook 15 minutes, stirring once or twice.
8. 8
   Sprinkle in flour and saute 2 minutes.
9. 9
   Stir in broth, wine, tomato paste, rosemary, reserved porcini liquid, and 2 cups water.
10. 10
    Bring to a boil, reduce heat to low, and simmer, partially covered, 30 minutes.
11. 11
    Strain through fine-mesh sieve into saucepan, and discard mushrooms.
12. 12
    Bring to a boil, reduce heat to medium-low and simmer, uncovered, 8 minutes, or until reduced to 4 cups.
13. 13
    Season with salt and pepper.