Summer fresh basil is the star of this creamy Basil Buttermilk Dressing. This versatile homemade salad dressing is a wonderful choice for your summer salads.

Making your dressings from scratch is a sure-fire way to elevate your salads. More of our favorites include Cilantro Lime Vinaigrette and Light Blue Cheese Dressing.

A green salad dressed with Basil Buttermilk Dressing.

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Each year when graduation time rolls around, I find myself reminiscing. And, of course, all of my memories seem to be tied to food.

Our youngest son’s graduation from UC Santa Barbara brings back memories of this unforgettable Basil Buttermilk Dressing. Adam and his girlfriend arranged for a post-graduation lunch at The Bistro at the gorgeous Bacara Resort in Santa Barbara. Our two families sat outdoors on a gloriously sunny California day and I ordered a grilled chicken salad that was topped with this dreamy dressing.

After returning home, I couldn’t get this darned dressing off my mind so I emailed the resort to ask if they’d be kind enough to share the recipe. I really didn’t have much hope of a response but lo and behold, Chef Jeffrey O’Brien took the time to respond with small batch version of this delicious dressing that can easily be prepared at home.

Basil Buttermilk Dressing in a mason jar with a spoon.

Ingredient Notes

  • Fresh basil: The star of this show is fresh basil. If you happen to be growing basil in your herb garden this year, this easy buttermilk salad dressing is a fabulous way to use it.
  • Creamy base: Reduced fat buttermilk and mayonnaise.
  • Vinegar: The restaurant uses champagne vinegar but I opted for white wine vinegar which is far less expensive and always stocked in my pantry. If you happen to have a bottle of champagne vinegar on hand, definitely use it here, but I don’t think it is worth the cost to purchase it specifically to make this recipe.
  • Shallot and garlic: Minced shallots add a mild onion flavor.
  • Dijon mustard: Adds great flavor to salad dressings.
  • Seasoning: A little sugar and salt.
Buttermilk basil salad dressing in a mason jar.

How to Make Basil Buttermilk Dressing

All the ingredients required to make Basil Buttermilk Dressing in the bowl of a food processor.
  1. Add all the ingredients to the bowl of a food processor or blender.
  2. Process until smooth and creamy.
  3. Taste and season with additional salt, if needed.

Storing Dairy Based Salad Dressing

  • Transfer your salad dressing to an airtight container. Mason jars or plastic storage containers with tight fitting lids work well.
  • Refrigerate. Be sure to refrigerate any unused dressing promptly. Dairy based dressings and dressings that include fresh herbs should be consumed within 1 week.
A spoon lifts some of the Basil Buttermilk Dressing from a mason jar.

Serving Suggestions

This Basil Buttermilk Dressing is nearly as versatile as my Buttermilk Ranch Dressing. It is delicious served over a main dish grilled chicken or seafood based salad or just drizzled over a simple tossed green side salad.

At The Bistro it was served on a baby spinach salad with avocado, pistachios, hard boiled egg, grilled chicken breast, blueberries, flax seeds, and goat cheese. Amazing.

An herb-based salad dressing like this one is a great way to add a burst of freshness to any salad.

A white bowl filled with green salad with a mason jar full of dressing behind it.

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Basil Buttermilk Dressing

5 from 8 votes
Servings: 8
Prep Time: 5 minutes
Cook Time: 0 minutes
Total Time: 5 minutes
Summer fresh basil is the star of this creamy Basil Buttermilk Dressing. This versatile homemade salad dressing is a wonderful choice for your summer salads.
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Ingredients 

  • cup buttermilk
  • cup mayonnaise
  • 1 tablespoon minced shallot
  • 2 teaspoons Dijon mustard
  • 1 teaspoon minced garlic
  • ¼ cup packed, roughly chopped basil leaves
  • 2 teaspoons white wine vinegar or champagne vinegar
  • 1 teaspoon sugar
  • salt, to taste

Instructions 

  • Purée all ingredients in the bowl of a food processor or blender. Taste and add additional salt, if needed.

Nutrition

Serving: 2tablespoons | Calories: 152kcal | Carbohydrates: 4g | Protein: 2g | Fat: 14g | Saturated Fat: 2g | Cholesterol: 9mg | Sodium: 262mg | Potassium: 60mg | Fiber: 1g | Sugar: 3g | Vitamin A: 98IU | Vitamin C: 1mg | Calcium: 49mg | Iron: 1mg

Nutrition information is automatically calculated using generic ingredients, and is an estimate not a guarantee. For more accurate results, please refer to the labels on your ingredients at home.

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Adapted from The Bistro at Bacara Resort and Spa

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About Valerie Brunmeier

Hello and welcome to my online kitchen! My focus here is to provide simple, seasonal meal solutions for busy households. I hope you find some inspiration while you’re here and visit again soon!

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Questions & Reviews

  1. Ashley Saint John says:

    This was so good! But I do have a question mine came out super runny, what did I do wrong and how can I fix it?

    1. Valerie Brunmeier says:

      It isn’t a super thick dressing but you can easily control the consistency. Just reserve the buttermilk and add only as much as you’d like at the end. Hope this helps!

  2. C_MI says:

    5 stars
    I was looking for a creamy fresh basil dressing and was so happy to find this. I was low on mayo so it was a little thin, but still delicious. Will be making this recipe all summer as long as the basil keeps growing.

  3. Irene Martens says:

    this dressing was okay. I followed it exactly. My dressing was not green at all, yes I used a heap of fresh basil. And the dressing is watery thin. A bit disappointing

    1. Valerie Brunmeier says:

      So sorry it didn’t work out for you, Irene. The buttermilk and mayonnaise mixture should blend together to a nice consistency. The dressing should be pourable, as you can see in the images, but not so thin that it’s watery.

  4. Patty Barry says:

    5 stars
    I love this dressing!