I started long ago with this recipe, with modifications:
Ingredients quantities I use are:
2 Tbsp (1/4 stick) unsalted butter, divided
1/4 cup chopped shallots
1 teaspoon (packed) brown sugar
1/2 cup canned low-salt chicken broth
1/2 cup canned beef broth
1/2 cup Cognac or brandy (I use a good VSOP cognac)
1/4 cup whipping/heavy cream
And you’ll need to simmer for at LEAST 45 minutes to reduce appropriately). Epicurious’s w0 minutes is serioysly a bunch of hooey, and they never should have published the recipe with that reduction time.
I also continue to simmer over ver low heat after the heavy cream has been whisked in, to further reduce and thicken.
