Recipe adapted from NYT Cooking! Is there anything better than ranch?

For each cup or so of dressing: 

• 1 tablespoon of the seasoning mix below 
• 1/4 cup of mayo
• 1/4 to 1/2 of sour cream, chilled
• A little bit more than 1/4 cup of buttermilk (or up to a 1/2 cup), shaken and chilled 

Directions  

1. Mix until combined!

Seasoning mix

• 1 1/2 teaspoons dried chives
• 1 teaspoon dried parsley
• 1 teaspoon dried dill
• 1 tablespoon onion powder
• 1 teaspoon garlic powder
• 1 teaspoon salt
• 1/4 teaspoon black pepper
• 1/4 teaspoon mustard powder
• 2 tablespoons buttermilk powder