Ingredients
Equipment
Method
- In a medium bowl, whisk the mayonnaise with the ranch seasoning mix and black pepper for about 30 seconds, until the mixture is a uniform thick paste with no dry pockets against the sides of the bowl.
- Add the cold buttermilk in three or four additions, whisking smooth after each before adding more. The finished dressing should be pourable with visible herb flecks throughout.
- Check the consistency: a spoonful should ribbon back into the bowl and settle within two or three seconds. Add buttermilk a tablespoon at a time to thin, or mayonnaise a tablespoon at a time to thicken. Err slightly thin, since it firms up overnight.
- Transfer to an airtight jar and refrigerate at least 1 hour, ideally 4, before serving. Stir before use.
Video
Notes
Keeps in an airtight jar in the fridge for roughly as long as the buttermilk you used — check that carton's date. Always use a clean utensil.
Do not freeze; buttermilk and mayonnaise both break on thawing.
No buttermilk? Whisk 1 tablespoon white vinegar or lemon juice into 1 cup whole milk and rest 10 minutes. Plain milk alone won't work.
For the no-packet, dairy-free, and lighter Greek yogurt versions, see the substitutions covered above.
Season to the written measurements and adjust only after chilling — it tastes under-seasoned when fresh and correct the next day.
