In a medium saucepan, thoroughly whisk together the yellow mustard, honey, apple cider vinegar, brown sugar, Worcestershire sauce, and hot sauce until the sugars are completely dissolved into the liquid.
Stir in the garlic powder, onion powder, black pepper, and celery seed.
Place the saucepan over medium-low heat and bring the bright golden mixture to a gentle simmer, whisking frequently to prevent the mustard from sticking to the bottom of the pot.
Once bubbling softly, reduce the heat to the lowest setting. Let it simmer gently for about 10 minutes. This allows the sharp, pungent mustard bite to mellow out and marry perfectly with the sweet honey.
Remove the pan from the heat and allow the sauce to cool completely at room