Step 4
Pour off all but 1 tablespoon of fat from the skillet and place over high heat. Add shallots and cook, stirring, until softened and fragrant, about 30 seconds. Add bourbon and cook,scraping up any browned bits from the bottom of the pan with a wooden spoon, until reduced by half, about 1 minute. Add the mustard and the stock/gelatin mixture and cook on high heat until sauce is reduced by about two-thirds, 5 to 8 minutes. Stir in butter, soy sauce, and lemon juice and cook at a hard boil until emulsified, about 30 seconds. Remove from heat and set aside.