In a mixing bowl, combine mayonnaise, sour cream, and buttermilk. Whisk until smooth.
Add minced garlic, chopped chives, parsley, dill, onion powder, garlic powder, salt, and black pepper to the bowl. Stir until all ingredients are well combined.
If you prefer a tangier dressing, add lemon juice and mix well.
Taste the dressing and adjust seasoning according to your preference. You can add more salt, pepper, or herbs if desired.
Transfer the ranch dressing to a jar or airtight container.
Refrigerate the dressing for at least 1 hour before serving to allow the flavors to meld together.
Before serving, give the dressing a good stir. If it's too thick, you can thin it out with a little more buttermilk.
Enjoy your homemade classic ranch dressing with salads, vegetables, chicken wings, or as a dipping sauce for your favorite snacks!
This recipe yields approximately 2 cups of ranch dressing. You can store any leftovers in the refrigerator for up to one week.
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.