In a bowl, whisk vinegar, salt, pepper, mustard, honey and garlic. Slowly add oil while whisking vigorously until the dressing is emulsified.
Tips & Notes
Store this homemade balsamic vinaigrette in a tightly sealed glass jar in the fridge. The dressing will thicken after refrigeration, so when you're ready to use it again, whisk in some olive oil to thin it out.