Combine the apple cider vinegar, Dijon mustard, honey, water, and minced garlic in a medium bowl.
Whisk the mixture until completely smooth and the honey is fully dissolved, about 30 seconds.
Slowly drizzle in the olive oil while whisking continuously to create a properly emulsified dressing.
Season with salt and freshly ground black pepper to taste, starting with 1/4 teaspoon salt.
Taste and adjust sweetness or acidity if needed by adding tiny amounts of honey or vinegar.
If using any optional herbs or seasonings, whisk them in now and allow flavors to meld for at least 5 minutes before serving.
Transfer to a glass jar with a tight-fitting lid and refrigerate until ready to use.