In a small bowl, whisk together mustard and honey until they’re kissing each other nicely. No clumps, please.
Stir in the mayonnaise if you want extra creaminess. Whisk until smooth.
Add lemon juice or vinegar a little at a time. Taste as you go so it isn’t shouting at your taste buds.
Season with a pinch of salt and pepper. Give it a final whisk and taste again. Adjust sweetness or tang if needed.
Cover and chill for 10–15 minutes if you have the time. If you’re in a rush, it’s instantly scoopable and delicious.
