Even though this recipe is called "Champagne" sauce, you can use any dry sparkling wine. If using alcohol is not an option, you can try using sparkling cider, just remember the sauce will taste sweeter then.
- 1/2 ounce dried porcini mushrooms (other dried mushrooms will work if dried porcini are not available)
- 1 cup chicken or vegetable stock
- 2 cups Champagne or other sparkling wine
- 1/3 cup shallots, minced
- Unsalted butter, 1/4 cup to add to the sparkling wine, 3 Tbsp for the roux
- 3 Tbsp all-purpose flour
1 Rehydrate dried mushrooms: Add the stock and dried mushrooms into a medium sized pot. Cover and bring to a boil, then reduce heat to its lowest setting.
2 Reduce champagne with shallots, whisk in butter: In separate medium sized pot, add the sparkling wine and shallots. Bring to a rolling boil, and boil until the wine has reduced to 3/4 of a cup.
Turn off the heat and wait until the wine stops simmering, then whisk in 1/4 cup of butter, a little at a time.
3 Make roux with butter and flour: Heat 3 Tbsp butter in a saucepan over medium-high heat. When the butter stops foaming, add the flour and stir well to combine. Stirring often, cook this roux for 5 minutes, or until it turns the color of coffee-with-cream.
4 Slowly add hot stock to roux: Working with two hands, slowly add the hot stock (along with the mushrooms) to the roux. It will sputter and spit at first, but keep pouring in the stock and stirring. It will turn into a silky sauce.
5 Whisk in butter shallot champagne mixture, pour through sieve: To finish, turn the heat off and whisk in the butter-shallot-sparkling wine mixture.
Pour the mixture through a fine mesh sieve into a bowl, to strain out the mushroom and shallots. Add salt to taste and keep warm until you need it.
Do not let it boil or the sauce may separate.