How to Make It
Cook 4 center-cut bacon slices in a skillet over medium-low until crispy. Set bacon aside, reserving drippings in skillet. Add sliced shallot to skillet; cook over medium 2 minutes. Add all-purpose flour; cook, stirring, 1 minute. Add 1unsalted chicken stock and sherry vinegar; simmer until thickened, 3 to 5 minutes. Remove from heat; stir in unsalted butter, fresh thyme leaves, and crumbled bacon.