Then add the all of the ingredients, except the buttermilk.
When I was researching ranch dressing I learned that there are very differing opinions regarding how much dill belongs in a ranch dressing. I used a medium amount of dill, and you can opt to add more if you like. Some recipes had as little as a teaspoon while other called for 2 tablespoons. I added 1 tablespoon and thought it was just the right amount. If you want to serve this dressing as a dip, just add less buttermilk! I recommend adding the buttermilk last, and making the dressing as thick or as thin as you like it. The dressing may thicken a little while it sits in the fridge, and you might want to add a little more buttermilk and stir it in before serving. This dressing can be kept in the fridge for up to a week, but you will probably eat it all before then. A full batch is shown in the images, it is just enough to fill a 16 ounce mason jar.