In a medium bowl, whisk together the Dijon mustard and apple cider vinegar until completely combined.
While continuously whisking, slowly drizzle in the olive oil in a thin, steady stream until fully emulsified and slightly thickened.
Add the honey, minced garlic, salt, and pepper to the mixture. Whisk thoroughly until all ingredients are evenly incorporated.
Taste and adjust seasonings as needed, adding more honey for sweetness or vinegar for tanginess until the flavor is balanced to your preference.
If using any optional add-ins, stir them in now.
Transfer the dressing to an airtight container or mason jar and refrigerate for at least 30 minutes before using to allow flavors to meld together.
Shake well before each use, as natural separation may occur during storage.
