A note on the sweetener:I love to use Swerve sweetener. It is keto & bariatric friendly, and it is a cup for cup substitute for sugar. You can use any artificial sweetener that you like or even sugar if you're not on a keto or low carb diet.
In a small bowl, whisk together the rest of the ingredients - olive oil, vinegar, garlic, sweetener, salt, and pepper until the dressing is combined and smooth.