I love a salad that feels substantial without being fussy. This Romaine and Broccoli Salad with Roasted Garlic Dressing does exactly that: crisp lettuce, bright vegetables, and a silky roasted-garlic dressing that clings to every piece. It’s the kind of dish I make when I want something fresh enough for a weeknight and elegant enough for guests.
The dressing is the star — slow-roasted garlic turns soft and sweet, then gets blended into a creamy base. That mellow garlic flavor lifts the raw vegetables instead of overpowering them. You’ll find the contrast between crunchy broccoli and tender romaine especially satisfying.
This recipe scales easily and comes together predictably. There’s a bit of advance time for roasting, but most of the work is simple assembly. Read on for the exact shopping list, step-by-step directions, and tips to make it your go-to salad.
Shopping List
- 2 heads garlic, unpeeled — whole heads for roasting; roasting mellows and sweetens the garlic.
- 1 tablespoon olive oil — to coat the garlic before roasting so it caramelizes evenly.
- 1 cup mayonnaise — provides the creamy base for the dressing.
- 1/2 cup buttermilk — thins and brightens the dressing; keeps it tangy.
- 2½ tablespoons minced fresh chives — adds a mild oniony freshness and color.
- 1 tablespoon freshly squeezed lemon juice — cuts through the richness and adds brightness.
- 1¼ teaspoons celery salt — salty, slightly savory seasoning that complements the dressing.
- 1/4 teaspoon freshly ground black pepper — a foundational seasoning; adjust to taste.
- 3 whole hearts of Romaine, torn into pieces — the crisp backbone of the salad; tear to preserve texture.
- 1 pint grape tomatoes — halved for bursts of sweet acidity.
- 1½ cups small broccoli florets — small florets dress well and offer crunch.
- 1 small English hothouse cucumber, thinly sliced — thin slices add coolness without extra bulk.
- 8 ounces thinly sliced mushrooms — earthy, tender when sliced thin; use your favorite variety.
- 1 small red onion, sliced thinly — sharpness and color; slice thin to avoid overpowering.
Directions: Romaine and Broccoli Salad with Roasted Garlic Dressing
- Preheat the oven to 325°F. Trim about 1/2 inch from the top of each of the 2 heads of unpeeled garlic to expose the cloves.
- Place each garlic head, cut side up, on a large square of aluminum foil. Drizzle the exposed cloves with 1 tablespoon olive oil and wrap each head tightly in its foil packet.
- Roast the garlic packets directly on an oven rack until the cloves are very tender and golden, about 1 hour 10 minutes. Remove from the oven and let cool until safe to handle. Carefully open the foil to avoid steam.
- Squeeze the roasted garlic cloves from their skins into a medium bowl and mash to a paste with a fork. Add and whisk together the remaining dressing ingredients: 1 cup mayonnaise, 1/2 cup buttermilk, 2½ tablespoons minced fresh chives, 1 tablespoon freshly squeezed lemon juice, 1¼ teaspoons celery salt, and 1/4 teaspoon freshly ground black pepper. Taste the dressing and, if desired, adjust only with additional freshly ground black pepper.
- Prepare the salad vegetables: tear 3 whole hearts of Romaine into bite-sized pieces; halve the 1 pint grape tomatoes; confirm you have 1½ cups small broccoli florets; use the 1 small English hothouse cucumber thinly sliced; use 8 ounces thinly sliced mushrooms; and use 1 small red onion sliced thinly. Combine all these vegetables in a large bowl.
- Pour about half of the roasted-garlic dressing over the vegetables and toss gently to coat. Add more dressing a little at a time until the salad is dressed to your liking (you may not use all of it). Taste and, if desired, add a little more freshly ground black pepper. Serve immediately.
What Makes This Recipe Special
The dressing is the defining element. Roasting garlic transforms its raw bite into a mellow, caramelized sweetness that integrates into mayonnaise and buttermilk, creating a dressing that’s rich but not cloying. That contrasts beautifully with crisp romaine and crunchy broccoli.
Texture is another strength. The combination of tender lettuce, small broccoli florets, thin cucumber slices, and thinly sliced mushrooms gives you bite after bite without needing croutons. The grape tomatoes add juicy pops of acidity that keep the salad lively.
Finally, the recipe is forgiving. The dressing can sit in the fridge for a few days, and you can adjust the dressing-to-salad ratio at the end, tailoring it to personal preference. It’s a reliable formula for a crowd or weeknight dinner.
Vegan & Vegetarian Swaps
Vegetarian note: This recipe is already vegetarian as written. For a vegan version, a few smart swaps keep the texture and flavor balanced.
- Mayonnaise: Use a vegan mayonnaise to maintain creaminess.
- Buttermilk: Replace with unsweetened plant milk (like oat or almond) mixed with 1 teaspoon apple cider vinegar or lemon juice to mimic buttermilk tang.
- Optional extras: If you want added savory depth, a teaspoon of miso paste blended into the dressing works well for vegans.
Before You Start: Equipment
- Oven and baking sheet or rack: for roasting garlic directly on an oven rack as instructed.
- Aluminum foil: large squares to wrap each garlic head tightly.
- Medium bowl and fork: to mash the roasted garlic into a paste and mix the dressing ingredients.
- Large salad bowl: for combining the Romaine and all vegetables.
- Sharp knife and cutting board: for slicing cucumbers, mushrooms, and red onion.
- Measuring spoons and cups: to keep ingredient ratios accurate, especially for seasoning.
Frequent Missteps to Avoid
Don’t skip roasting the garlic. Raw garlic would be too sharp and dominate the salad. Roasting is the step that gives the dressing its mellow character.
Be cautious with the celery salt and black pepper. They’re concentrated seasonings in this dressing. Follow the amounts, then adjust only with a little freshly ground black pepper if needed. Adding more celery salt can push the dressing over-salted quickly.
When combining the salad, add the dressing gradually. Pouring it all on at once risks overdressing and soggy leaves. Start with about half, toss, then add more if you want more coverage.
Holiday-Friendly Variations
This salad adapts easily for holiday tables or special dinners.
- Crunch boost: Sprinkle toasted walnuts or sliced almonds on top for extra crunch and a festive look. Toast briefly in a dry skillet until fragrant.
- Herb lift: Fold in a tablespoon of chopped parsley or dill for a brighter, herbaceous note if you want it to feel more celebratory.
- Fruit addition: Pomegranate seeds add color and a jewel-like burst of tartness that pairs beautifully with the creamy dressing.
Pro Perspective
As a cook, I always think in layers: texture, flavor, seasoning. Roast the garlic long enough so it’s truly soft; under-roasted cloves won’t mash smoothly and won’t distribute flavor evenly. The low oven temperature and longer time here are deliberate — they coax out sugars without burning.
When mashing the garlic, take a moment to ensure it’s a smooth paste. Any chunkiness can create uneven pockets of intense garlic. A fork does the job, but if you want an ultra-smooth dressing, press the roasted cloves through a fine sieve or blitz briefly with an immersion blender after mixing the other dressing ingredients.
Finally, mind your knife work. Thinly sliced red onion blends into the salad better than thick rings and avoids a single bite of overpowering raw onion. The same goes for the mushrooms: thin slices keep texture consistent.
Keep-It-Fresh Plan
Dressing storage: The roasted-garlic dressing will keep in an airtight container in the refrigerator for up to 3 days. Give it a quick whisk before using if separation occurs.
Salad storage: The assembled salad is best served immediately. To prep ahead, chop and store all vegetables separately in sealed containers in the fridge for up to 2 days. Keep the dressing chilled and toss everything together just before serving.
Leftovers: If you have leftovers after tossing the salad, eat them within a day for the best texture. The romaine will soften and broccoli will lose some crunch the longer it sits dressed.
Romaine and Broccoli Salad with Roasted Garlic Dressing Q&A
Q: Can I roast the garlic ahead of time?
A: Yes. Roast the garlic up to 3 days ahead and refrigerate the cooled, wrapped heads. When ready, squeeze out the cloves and proceed to mash and combine with the other dressing ingredients.
Q: Is the dressing thick or pourable?
A: It’s a creamy, spoonable dressing with a bit of body from the mayonnaise. The buttermilk thins it into a pourable consistency so it coats but doesn’t puddle.
Q: Can I blanch the broccoli?
A: You can, but the recipe calls for raw small florets to keep crunch. If you prefer slightly tender broccoli, blanch briefly (30–60 seconds) and shock in ice water, then drain well before tossing.
Q: How do I reduce the richness?
A: Use a light mayonnaise or reduce the mayo by replacing up to a half-cup with plain Greek yogurt for tang and lower fat. Note this will change the texture slightly but keeps the flavor profile similar.
Q: Can I double the recipe?
A: Yes. Roast more garlic heads proportionally and whisk the dressing in a larger bowl. Taste the doubled dressing before seasoning further; sometimes you’ll need just a touch more lemon or pepper.
In Closing
This Romaine and Broccoli Salad with Roasted Garlic Dressing is one of those recipes that feels thoughtful but is easy to execute. Take the time to roast the garlic properly and the rest becomes a straightforward assembly. It’s versatile enough for weeknight dinners and handsome enough for the holiday table. Keep the dressing in the fridge for a few days, prep the vegetables ahead if you like, and finish the salad just before serving for the best texture.
Taste as you go, trust your palate on pepper and acidity, and enjoy the contrast of bright vegetables against that silky roasted-garlic dressing. It’s a reliable recipe that comes together beautifully every time.
Romaine and Broccoli Salad with Roasted Garlic Dressing
Ingredients
Ingredients
- 2 headsgarlic unpeeled
- 1 tablespoonolive oil
- 1 cupmayonnaise
- 1/2 cupbuttermilk
- 2 1/2 tablespoonsminced fresh chives
- 1 tablespoonfreshly squeezed lemon juice
- 1 1/4 teaspoonscelery salt
- 1/4 teaspoonfreshly ground black pepper
- 3 wholehearts of Romaine torn into pieces
- 1 pintgrape tomatoes
- 1 1/2 cupssmall broccoli florets
- 1 smallEnglish hothouse cucumber thinly sliced
- 8 ouncesthinly sliced mushrooms
- 1 smallred onion sliced thinly
Instructions
Instructions
- Preheat the oven to 325°F. Trim about 1/2 inch from the top of each of the 2 heads of unpeeled garlic to expose the cloves.
- Place each garlic head, cut side up, on a large square of aluminum foil. Drizzle the exposed cloves with 1 tablespoon olive oil and wrap each head tightly in its foil packet.
- Roast the garlic packets directly on an oven rack until the cloves are very tender and golden, about 1 hour 10 minutes. Remove from the oven and let cool until safe to handle. Carefully open the foil to avoid steam.
- Squeeze the roasted garlic cloves from their skins into a medium bowl and mash to a paste with a fork. Add and whisk together the remaining dressing ingredients: 1 cup mayonnaise, 1/2 cup buttermilk, 2½ tablespoons minced fresh chives, 1 tablespoon freshly squeezed lemon juice, 1¼ teaspoons celery salt, and 1/4 teaspoon freshly ground black pepper. Taste the dressing and, if desired, adjust only with additional freshly ground black pepper.
- Prepare the salad vegetables: tear 3 whole hearts of Romaine into bite-sized pieces; halve the 1 pint grape tomatoes; confirm you have 1½ cups small broccoli florets; use the 1 small English hothouse cucumber thinly sliced; use 8 ounces thinly sliced mushrooms; and use 1 small red onion sliced thinly. Combine all these vegetables in a large bowl.
- Pour about half of the roasted-garlic dressing over the vegetables and toss gently to coat. Add more dressing a little at a time until the salad is dressed to your liking (you may not use all of it). Taste and, if desired, add a little more freshly ground black pepper. Serve immediately.
Equipment
- Oven
- Aluminum Foil
- Medium Bowl
- Large Bowl
- Fork
Notes
The dressing may be made up to one day ahead, just cover and chill.
If you are counting WW Points or just want to cut back on calories, be sure to use low fat mayo and buttermilk.
Cut this recipe in half if you don't have to feed 10 people.
