In a medium-sized bowl, pour in buttermilk, sour cream, and mayonnaise. Use a whisk to blend them together. You want everything to be smooth and well-combined, so take your time here. The texture should be creamy, without any lumps.
Next, add in the white vinegar. This will give your dressing that signature tang that pairs so well with salads and vegetables. Whisk again until it's fully incorporated.
Now, it’s time to season! Sprinkle in the onion powder, dried parsley, dried dill, and garlic powder. These spices are what will really make your dressing shine.
Don't forget the salt and black pepper. Start with the measured amounts, but remember you can always adjust to your taste later. Taste the dressing as you go, and feel free to add more seasoning if needed.
Once all your ingredients are mixed, cover the bowl with plastic wrap or a lid. This step is crucial because it allows the flavors to meld together beautifully. Let it sit in the fridge for at least two hours. I recommend doing this overnight if you can! It makes a world of difference.
Before serving, give the dressing a good stir. Check for seasoning one last time and adjust if necessary. If it’s too thick for your liking, you can thin it out with a bit more buttermilk.
Transfer your Homemade Ranch Dressing into an airtight container or a mason jar. This will make storage easy and keep it fresh.
Enjoy your delicious dressing on salads, as a dip for veggies, or even drizzled over baked potatoes. It’s perfect for any occasion!