To a medium bowl, add the mayonnaise, dijon mustard, deli style mustard, honey, salt, and white pepper. Stir to combine. If you like your honey mustard sweet, add another ½ to 1½ teaspoons to taste.
Notes
This sauce keeps in the refrigerator in an airtight container for 1-2 weeks, as long as you always handle it with a clean utensil.
To make this sauce into a salad dressing, thin it out with ½ cup of extra virgin olive oil, add a generous pinch extra of salt, and some white wine vinegar to taste!