Grilled Cauliflower Steaks
Thick-cut cauliflower steaks grilled until tender and charred, finished with a bright, smoky romesco sauce. This vegetarian main is vibrant, satisfying, and perfect for backyard grilling or a meatless centerpiece.
Ingredient Spotlight
Roasted red peppers (jarred), drained
Jarred roasted red peppers are red bell peppers that have been charred, peeled, and preserved in oil or brine—common in Mediterranean and Spanish cuisines. They have a sweet, slightly smoky flavor and soft, jammy texture that’s convenient when fresh grilling isn’t practical. You can find them in the international or condiment aisle of most supermarkets or at Mediterranean specialty shops. Substitute by roasting fresh red bell peppers under a broiler or on a grill until charred, then peeling and slicing, or use fire-roasted red peppers from the refrigerated deli section.
Ingredient Spotlight
Sherry vinegar
Sherry vinegar is an acidic, wine-based vinegar from the Jerez region of Spain, made from aged sherry wines; it’s prized in Spanish cooking for its nutty, slightly sweet, complex acidity. Its flavor is more rounded and aromatic than typical white wine or distilled vinegar and it brightens dressings, sauces, and marinades. Look for it in well-stocked supermarkets, gourmet shops, or online; there are range of ages (younger to crianza to reserva) with increasing depth. Good substitutes are a quality white wine vinegar or red wine vinegar mixed with a splash of dry sherry or a pinch of sugar to mimic the sweetness and complexity.
Ingredient Spotlight
Smoked paprika
Smoked paprika (pimentón) is a Spanish ground pepper made by smoking ripe red peppers over oak fires before milling, giving it a pronounced smoky, sweet, and slightly bitter pepper flavor and deep red color. It’s commonly used in Spanish, Hungarian, and modern global cuisines to add color and a smoky note without heat (there are sweet, bittersweet, and hot varieties). It’s available in many supermarkets but can be unfamiliar to some home cooks; if you don’t have it, substitute with a mix of sweet paprika plus a small amount of chipotle powder or a drop of liquid smoke, or use regular paprika with smoked salt to approximate the flavor.
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Jake Woods's note
"This recipe shines as a show-stopping vegetarian main for summer dinners or casual cookouts — the romesco brings punchy, nutty depth that elevates simple grilled cauliflower. Home cooks will love how impressive it looks while being straightforward to prepare."
About This Recipe
There’s something quietly impressive about a cauliflower steak: a humble vegetable transformed by heat into something meaty, caramelized, and complex. These thick-cut steaks hold up to a direct flame, developing sweet, charred edges and an almost buttery interior when cooked just until tender. The romesco here — smoky jarred peppers, toasted almonds, sherry vinegar and smoked paprika — adds bright acidity and nutty depth that keeps each bite lively rather than heavy.
This version leans practical without sacrificing flavor: jarred roasted peppers speed the sauce, blanched almonds lend a silky texture, and a brief warm-through of the peppers before pulsing brings the sauce to the perfect temperature for glazing. Grill the steaks over medium-high heat to get that satisfying crust without turning the centers chalky, and finish with lemon and parsley to lift the dish. It’s a show-stealing vegetarian main for a backyard meal, but it’s also sturdy enough to convince meat-eaters — pair it with crusty bread or roasted potatoes and you’re feeding everyone well.
Ingredients for Grilled Cauliflower Steaks
- 1 large head Large cauliflower head
- 3 tbsp Extra-virgin olive oil
- 1 cup (packed) Roasted red peppers (jarred), drained
- 1/2 cup Blanched almonds
- 2 cloves Garlic cloves
- 2 tbsp Sherry vinegar
- 1 tsp Smoked paprika
- 1 1/2 tsp (combined) Kosher salt & freshly ground black pepper
- 1 medium Fresh lemon
- 2 tbsp Fresh parsley (chopped)
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How to Make Grilled Cauliflower Steaks
Step 1: Make the romesco sauce
In a toaster oven or on the grill, warm the drained roasted red peppers briefly to take the chill off. In a food processor, combine the warmed peppers, blanched almonds, garlic, sherry vinegar, smoked paprika and 2 tablespoons of the olive oil; pulse until a coarse, spreadable sauce forms. Taste and season with about half the salt-and-pepper mixture, adding more olive oil or a splash of water if the sauce is too thick.For this step
- 1 cup (packed)Roasted red peppers (jarred), drained
- 1/2 cupBlanched almonds
- 2 clovesGarlic cloves
- 2 tbspSherry vinegar
- 1 tspSmoked paprika
Step 2: Slice and season the cauliflower
Remove the outer leaves from the cauliflower and trim the stem so the head sits flat. Slice the head into 3/4- to 1-inch thick 'steaks' (you should get 3–4 steaks from a large head; reserve any loose florets for another use). Brush both sides lightly with the remaining 1 tablespoon olive oil and season with the remaining salt-and-pepper.For this step
- 1 large headLarge cauliflower head
Step 3: Preheat and prepare the grill
Preheat a gas or charcoal grill to medium-high (about 400°F / 200°C). Oil the grates well to prevent sticking: use a folded paper towel dipped in oil and held with tongs to wipe the grates, or brush them lightly with oil.Step 4: Grill the cauliflower steaks
Place the cauliflower steaks on the hot grill and cook 6–8 minutes per side, rotating only once, until charred and tender when pierced with a knife. If using loose florets, grill them in a grill basket for 5–7 minutes, shaking occasionally. Transfer the steaks to a platter and let rest 2 minutes.Step 5: Finish and serve with romesco
Spoon the romesco sauce generously over the warm cauliflower steaks, squeeze a little fresh lemon juice across the top, and sprinkle with chopped parsley. Serve immediately as a vibrant vegetarian main or alongside grilled vegetables and crusty bread.For this step
- 1 mediumFresh lemon
- 2 tbspFresh parsley (chopped)
- In a toaster oven or on the grill, warm the drained roasted red peppers briefly to take the chill off. In a food processor, combine the warmed peppers, blanched almonds, garlic, sherry vinegar, smoked paprika and 2 tablespoons of the olive oil; pulse until a coarse, spreadable sauce forms. Taste and season with about half the salt-and-pepper mixture, adding more olive oil or a splash of water if the sauce is too thick.
- Remove the outer leaves from the cauliflower and trim the stem so the head sits flat. Slice the head into 3/4- to 1-inch thick 'steaks' (you should get 3–4 steaks from a large head; reserve any loose florets for another use). Brush both sides lightly with the remaining 1 tablespoon olive oil and season with the remaining salt-and-pepper.
- Preheat a gas or charcoal grill to medium-high (about 400°F / 200°C). Oil the grates well to prevent sticking: use a folded paper towel dipped in oil and held with tongs to wipe the grates, or brush them lightly with oil.
- Place the cauliflower steaks on the hot grill and cook 6–8 minutes per side, rotating only once, until charred and tender when pierced with a knife. If using loose florets, grill them in a grill basket for 5–7 minutes, shaking occasionally. Transfer the steaks to a platter and let rest 2 minutes.
- Spoon the romesco sauce generously over the warm cauliflower steaks, squeeze a little fresh lemon juice across the top, and sprinkle with chopped parsley. Serve immediately as a vibrant vegetarian main or alongside grilled vegetables and crusty bread.
Grilled Cauliflower Steaks Tips
Pick a firm head
Choose a cauliflower with a tight curd and a thick, even stem so you can cut full, intact steaks that won't fall apart on the grill.
Slice with stability
Trim just enough stem for the head to sit flat, then use a large chef’s knife in one confident stroke to make 3/4–1-inch steaks to minimize crumble.
Prevent sticking
Oil the grill grates well and brush both sides of each steak with oil; letting the metal get properly hot before adding the cauliflower creates instant sear and reduces tearing.
Control char and doneness
Cook over medium-high and rotate only once; a longer initial sear yields good color while finishing on the second side through gentler heat ensures tender centers.
Adjust romesco texture
Pulse the sauce to a coarse paste for body, then thin with extra olive oil or a tablespoon of water if it feels too dense for spooning over warm steaks.
Grilled Cauliflower Steaks Variations and Substitutions
Nut-free romesco
Replace the almonds with equal weight roasted sunflower seeds or pepitas and add an extra splash of olive oil for creaminess without nuts.
Smoky-Mediterranean twist
Stir in 2 tablespoons grated Manchego or Parmesan into the romesco for a savory umami lift (skip for strict vegetarian), and finish with a few torn basil leaves.
Spicy chipotle version
Swap half the smoked paprika for 1 small chipotle in adobo when processing the sauce for a smoky heat that plays well with charred cauliflower.
Oven-roasted alternative
If you don’t have a grill, roast the steaks on a preheated sheet at 450°F (230°C) for 20–25 minutes, flipping once, then broil 2–3 minutes per side to get char.
How to Store and Make Grilled Cauliflower Steaks Ahead
Store leftover romesco in an airtight container in the refrigerator for up to 5 days and keep cauliflower steaks separate to preserve texture. Reheat steaks briefly on a hot grill or under a broiler for 3–5 minutes until warmed through; spoon on chilled or room-temperature romesco after reheating so the sauce keeps its brightness.
What to Serve With Grilled Cauliflower Steaks
Serve these steaks plated with a smear of romesco and a wedge of charred lemon for squeezing; scatter extra toasted almonds or parsley on top for crunch and color. Good companions include grilled asparagus or a warm potato salad, and a glass of medium-bodied red like Garnacha/Tempranillo or a zesty Vermentino for white wine lovers.
Grilled Cauliflower Steaks FAQs
Can I make the romesco ahead of time?
Yes — romesco actually benefits from resting; make it a day ahead to let flavors meld. Bring it to room temperature before spooning over warm steaks, or serve it chilled as a condiment.
What if my cauliflower falls apart when slicing?
That usually means the stem was trimmed too far or the head was small and irregular; reserve loose florets for grilling in a basket and only try steaks with larger, evenly shaped heads.
Are blanched almonds necessary?
Blanched almonds give the sauce a silkier, less bitter finish, but you can substitute toasted skin-on almonds for more rustic flavor — pulse longer to break down the skins.
How do I know when the steaks are done?
They’re ready when you have deep, even char and a knife easily pierces the center with slight resistance; about 6–8 minutes per side at medium-high heat is typical for 3/4–1-inch steaks.
Can I make this nut-free for allergies?
Yes — use roasted pepitas or sunflower seeds instead of almonds and increase the oil slightly to achieve a smooth, spreadable consistency.
About the author
Jake WoodsHello, I'm Jake. I started this recipe site with the idea that I hated recipe websites that overwhelm you with long stories and ads just to see plain content that's not helpful. My goal is to provide you with quality recipes, simple ideas and a fun cooking experience. There's lots of fun things to cook, and I think as you browse the site you'll find that TopShelf.Recipes is the place for quality recipes on the web.
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Nutrition Facts
Per serving: about 1½ cups
Nutrition values are estimated from USDA ingredient data and may vary based on preparation, brands, and portion sizes. Values are provided for informational purposes only.
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