In a small bowl or jar, combine the shallot, vinegar (or lime juice), mustard, honey, salt, pepper, and lime zest.
Let the shallots sit in the mixture for about 5 minutes to mellow out.
Slowly whisk in the olive oil (or shake if using a jar) until emulsified.
Taste and adjust salt, pepper, or sweetness as needed.
Drizzle generously over your avocado corn salad just before serving.
