Gather all ingredients in a mixing bowl.
Pour the Dijon mustard into the bowl.
Add the honey to the mustard.
Incorporate the apple cider vinegar.
If desired, add mayonnaise for creaminess.
Whisk until smooth and well combined.
Season with salt and pepper to taste.
Taste the sauce and adjust flavors as needed.
Transfer the sauce to a jar or container.
Refrigerate for at least 30 minutes before serving.