Casa Salad Dressing Recipe: Herb-Infused Creaminess With Celery Crown Crunch

This Casa salad dressing recipe transforms ordinary greens into a restaurant-worthy dish with its signature herb-infused creaminess and signature celery crown crunch. The secret lies in balancing tangy buttermilk with fresh herbs and a touch of cream, creating a dressing that's rich yet light enough to complement any salad.

I developed this recipe after years of perfecting the ideal texture—thick enough to cling to lettuce but still drizzle-friendly for those who prefer a lighter touch.

The magic happens with a simple blend of mayonnaise, buttermilk, fresh dill, and a hint of garlic powder, all emulsified to create a velvety base. What sets this dressing apart is the optional celery crown crunch—thinly sliced celery seeds that add a satisfying textural contrast with every bite.

This isn’t just a dressing; it’s the star of your salad bowl, elevating simple greens into a gourmet experience.

What you’ll achieve is a dressing that stays fresh in the fridge for up to a week, maintaining its creamy consistency and vibrant flavor. The herbs keep it bright, while the buttermilk adds a subtle tang that balances rich ingredients like bacon or avocado.

Whether you’re prepping for a week of lunches or dressing up a quick dinner salad, this recipe delivers restaurant-quality results with minimal effort.

For those who prefer a lighter option, swap half the mayonnaise for Greek yogurt to cut calories without sacrificing creaminess. Store leftovers in an airtight container, and shake before each use to redistribute the celery crunch. Here’s how to make it—simple, foolproof, and guaranteed to become your go-to dressing.

Ingredients for casa salad dressing

Restaurant-quality dressing starts with these simple yet transformative ingredients.

The mayonnaise and buttermilk form the creamy base, so full-fat versions are key—they emulsify beautifully and give that signature velvety texture. I always grab Hellmann's or Best Foods for the mayo, and Land O'Lakes buttermilk for consistency, though any good brand works. Fresh dill and chives are non-negotiable for that bright herbaceous flavor—shop the refrigerated section and pick bunches with vibrant green leaves. Celery seeds add depth, but if you can't find them, ground celery seed works too. The celery sticks for crunch? Use the hearty green ones—they hold up better when thinly sliced.

No buttermilk? Substitute with milk plus 1 tbsp vinegar or lemon juice—let it sit 5 minutes. Heavy cream optional but worth it for that restaurant-style richness. For a lighter version, swap half the mayo for Greek yogurt—it cuts calories while keeping creaminess. If celery seeds are unavailable, dried dill at half the amount adds similar earthiness. The Dijon mustard adds subtle tang—Maille is my go-to, but any good quality brand works. And if you're prepping ahead, store the dry ingredients separately until ready to mix.

This dressing keeps for up to 1 week in the fridge, but the celery crunch stays freshest for 3-4 days—add it just before serving. Store in an airtight container, and give it a good shake before each use to redistribute that satisfying crunch. For meal prep, I make double batches—one for immediate use and one frozen in ice cube trays. Thaw overnight in the fridge for perfect consistency. The herbs and lemon juice keep it bright, so don't skip those fresh ingredients—they're what make this dressing shine.

Step-by-step instructions for creamy Casa salad dressing

Here's how to make this signature dressing with perfect herb balance and that signature celery crown crunch.

In a medium bowl, combine the 0.5 cup mayonnaise and 0.5 cup buttermilk. I like to use a whisk for this step to ensure everything blends smoothly from the start. The buttermilk adds that signature tangy creaminess that sets this dressing apart from regular ranch.

Next, stir in the 0.25 cup fresh dill, 2 tablespoons fresh chives, 1 teaspoon garlic powder, 1 teaspoon celery seeds, 1 tablespoon Dijon mustard, and 1 tablespoon lemon juice. The fresh herbs should be finely chopped—this prevents any texture issues later. Mix until everything is fully incorporated and you have a smooth, thick base. This is where all the flavors come together, so take your time and make sure the celery seeds are evenly distributed throughout.

Pour in the 0.25 cup heavy cream (if using) and stir again until fully combined. The cream adds an extra layer of richness that makes this dressing truly special. Now, taste and adjust the seasoning with the 0.5 teaspoon Diamond Crystal kosher salt. I usually find I need a bit more salt at this stage—this is where you can really customize the flavor to your taste.

At this point, the dressing should be thick and creamy with a bright, herby flavor. If it's too thick for your liking, you can thin it out with a splash of buttermilk or water, but I find this recipe strikes the perfect balance right out of the bowl.

While the dressing sits, prepare the signature celery crown topping. Take the 2 whole celery sticks and slice them thinly on the diagonal into ¼-inch pieces. This creates those beautiful, delicate ribbons that add both texture and flavor. You want enough pieces to garnish each serving—about 2 tablespoons total—so adjust the amount if you're making more or less dressing.

Here's the thing—these celery ribbons should be fresh and crisp. If you're preparing them ahead of time, store them separately in the fridge and add them just before serving. This keeps them from getting soggy in the dressing.

Gently fold the celery ribbons into the dressing just before serving. The key here is to be delicate—you want to maintain those beautiful ribbons without crushing them. The celery will add a subtle crunch that contrasts perfectly with the creamy texture of the dressing.

For the best flavor, let the dressing sit in the refrigerator for at least 30 minutes before serving. This allows all the flavors to meld together beautifully. The longer it sits, the more the herbs infuse and the more complex the flavor becomes. I like to make it ahead of time so it's ready when I need it—it actually tastes better the next day!

When ready to serve, give the dressing one final stir to redistribute any settled ingredients. The dressing should be thick enough to cling to greens but still pour smoothly. Drizzle generously over your favorite salad—it pairs especially well with crisp romaine, cucumbers, and tomatoes.

This dressing is the perfect balance of creamy, tangy, and herby with that signature celery crown crunch. The fresh dill and chives bring bright, vibrant flavors, while the celery seeds and garlic powder add depth. Each bite delivers a perfect harmony of textures and tastes that makes this dressing truly special.

Dietary considerations for casa salad dressing

Dairy-Free Option

For a creamy dressing without dairy, swap the 0.5 cup mayonnaise and 0.5 cup buttermilk with 0.5 cup vegan mayo (like Hellmann's Vegan or Sir Kensington's) and 0.5 cup unsweetened almond milk mixed with 1 tbsp lemon juice.

The texture stays rich, and the flavor remains bright. I've tested this version with Annie's Organic vegan mayo—it holds up beautifully in salads. 🌱

Gluten-Free Adaptation

This dressing is naturally gluten-free, but always double-check labels on your mayo, celery seeds, and Dijon mustard. Hellmann's and Maille brands are typically safe, but cross-contamination can happen in shared facilities.

For extra caution, use certified gluten-free mayo like Primal Kitchen. The celery crown topping remains safe as long as you're using fresh celery sticks. ✨

Low-Fat Version

Cut calories by replacing 0.25 cup heavy cream with 0.25 cup light cream or Greek yogurt. I recommend Fage 2% for its tangy richness. Also, opt for light mayo (like Hellmann's Light) and low-fat buttermilk to reduce fat content while keeping the dressing creamy.