In a mixing bowl, whisk together the mustard, mayonnaise, keto honey, and white vinegar until smooth. If you want it sweeter, add extra honey. If you want it extra tangy, add more mustard.
Transfer it into a sealable container or a sterilized jar.
Notes
Serving size is 2 heaped tablespoons.
Tips: See my recipe tips above for making the best honey mustard sauce.
Leftovers: Keep in the fridge for up to 4 weeks or the freezer for 6 months.