Prepare to fall in love with this Whole Roasted Cauliflower with lemon-caper piccata sauce. It’s an easy weeknight main yet elegant enough for holiday tables.
Bring something special to the table with a whole roasted cauliflower that takes about 30 minutes to prepare and looks and tastes gourmet. The cauliflower is steamed briefly, brushed with a spiced olive oil mixture, then roasted until golden. It’s served with a bright, silky piccata sauce made from caramelized onions, white wine (or stock), lemon, capers, and a touch of flour to thicken. The tangy sauce complements the tender roasted head for an impressive plant-based centerpiece.
Ingredients
Cauliflower: One medium whole head (about 2 lb), firm with tight florets.
Seasonings: Dried thyme, smoked paprika, garlic powder, turmeric (optional), and sea salt for color and flavor.
Extra virgin olive oil: For brushing the cauliflower and sautéing the onions; substitute avocado oil if preferred.
Yellow onion or leek: Sliced, to caramelize and add depth to the piccata sauce.
All-purpose flour: Helps thicken the piccata sauce; use a 1:1 gluten-free flour if needed.
Dry white wine: Pinot Grigio, Sauvignon Blanc, or Chardonnay add brightness; replace with extra vegetable broth if avoiding alcohol.
Vegetable broth: Use a good-quality broth or water with vegetable bouillon paste.
Lemon juice: Fresh lemon juice is essential for the piccata’s bright tang.
Capers: Drained, for a salty, briny punch.
Black pepper and fresh parsley: For seasoning and garnish.
Recipe Variations
Try these simple variations to change the flavor profile:
- Herb-crusted: Add finely chopped rosemary, thyme, or sage to the spice mix for an herb-forward crust.
- Creamy piccata: Stir in 2–3 tablespoons of coconut cream or cashew cream at the end for extra richness.
- Extra zesty: Add lemon zest or serve with lemon wedges for more citrus brightness.
- Mushroom piccata: Sauté sliced cremini mushrooms with the onions for additional umami.
- Spicy piccata: Add ½ teaspoon crushed red pepper flakes to the sauce for heat.
Serving Suggestions
This whole roasted cauliflower makes a striking plant-based main. Pair it with mashed potatoes, roasted root vegetables, green beans, or savory biscuits to round out the meal.
How to Make Whole Roasted Cauliflower Piccata
Simple steps yield an elegant result. Follow the method below:
- Steam the cauliflower: Trim outer leaves and level the base so the head sits flat. Place the head in a steamer basket over boiling water and steam 10–15 minutes, until a knife pierces easily.
- Cool and preheat: Remove the lid and let the cauliflower cool 5 minutes. Preheat the oven to 375°F.
- Season: Transfer to a baking dish or cast-iron skillet. Mix salt, thyme, smoked paprika, garlic powder, turmeric (optional), and olive oil; brush all over the cauliflower so it’s evenly coated.
- Roast: Roast at 375°F for about 30 minutes, until golden and tender.
- Sauté the onions: While the cauliflower roasts, heat remaining oil in a skillet over medium heat. Sauté sliced onions (or leeks) with a pinch of salt about 8 minutes until softened and beginning to caramelize.
- Toast flour: Sprinkle flour over the onions and toast for about 3 minutes until lightly browned.
- Build the piccata sauce: Add white wine to deglaze the pan, scraping up browned bits. Stir in vegetable broth, lemon juice, capers, and black pepper.
- Simmer to thicken: Bring the sauce to a simmer and cook about 10 minutes until glossy and slightly thickened. Taste and adjust with more lemon, salt, or pepper as needed.
- Serve: Spoon the piccata sauce onto a platter, set the roasted cauliflower on top, garnish with chopped parsley and freshly ground black pepper, and serve with lemon wedges.
Jenné’s Recipe Tips
- Prepare the cauliflower well: Trim the base and remove outer leaves so it sits flat; rinse to remove any dirt.
- Par-cook first: Steaming before roasting ensures an evenly cooked, moist interior.
- Season thoroughly: Work the spiced oil into all the crevices to flavor every bite.
- Toast the flour: Toasting prevents a raw flour taste and produces a smoother sauce.
- Simmer patiently: Let the sauce reduce the full time so it becomes glossy and thick.
- Slicing to serve: Cut into 4–6 wedges using a sturdy knife, keeping the core intact so the pieces hold together.
Storage Directions
- Refrigerate: Store leftover cauliflower and sauce separately in airtight containers for up to 3 days. Freezing whole roasted cauliflower is not recommended.
- Reheat: Warm the cauliflower in a 350°F oven for 10–12 minutes. Gently reheat the sauce on low, adding a splash of broth if it needs loosening.
Frequently Asked Questions
Yes. Replace the wine with an extra cup of vegetable broth and 1–2 tablespoons additional lemon juice for acidity.
It should be fork- or knife-tender and golden on the outside. If still firm, roast another 5–10 minutes.
You can steam and season the cauliflower a day ahead and refrigerate; roast just before serving for best texture. The sauce can also be made a day ahead and reheated gently.
More Vegetable Entree Recipes
- Whole roasted cabbage-style mains, lasagna, lentil meatloaf, and roasted vegetable sides all pair well with this dish.
Whole Roasted Cauliflower Piccata
Ingredients
- 1 medium whole cauliflower (about 2 lb)
- 1 ½ tsp sea salt, plus more to taste
- 1 tsp dried thyme
- 1 tsp smoked paprika
- 1 tsp garlic powder
- 1/4 tsp turmeric powder (optional)
- 3 tbsp extra virgin olive oil
- 1/2 yellow onion, sliced (or 1/2 leek)
- 2 tbsp all-purpose flour (or 1:1 gluten-free flour)
- 1 cup dry white wine (or omit and use extra broth)
- 1 cup vegetable stock or broth (or 1 cup water + 2 tsp vegetable paste)
- Juice of 1 lemon (about 1/4 cup)
- 1/4 cup capers, drained
- 1 tsp freshly ground black pepper
- 1/4 cup fresh chopped parsley
Instructions
- Remove outer leaves and trim the base so the cauliflower sits flat.
- Steam the cauliflower in a steamer basket over boiling water 10–15 minutes until a paring knife pierces easily.
- Let cool about 5 minutes, then preheat the oven to 375°F.
- Place the cauliflower in a baking dish or cast-iron skillet.
- Mix 1 ½ tsp salt, thyme, smoked paprika, garlic powder, turmeric, and 2 tbsp olive oil. Brush all over the cauliflower.
- Roast 30 minutes or until golden and fork-tender.
- While roasting, heat 1 tbsp oil in a skillet, sauté the onions with a pinch of salt about 8 minutes until softened and beginning to caramelize.
- Sprinkle flour over the onions and toast about 3 minutes until lightly browned.
- Pour in the white wine to deglaze, scraping up any browned bits. Stir in vegetable broth, lemon juice, capers, and black pepper.
- Simmer 10 minutes until the sauce is smooth and thickened. Remove from heat and adjust seasoning with salt or more lemon if needed.
- Spoon the piccata sauce onto a serving platter, place the roasted cauliflower on top, garnish with parsley and black pepper, and serve with lemon wedges.
Notes
Storage: Refrigerate cauliflower and sauce separately in airtight containers for up to 3 days. Reheat cauliflower in a 350°F oven for 10–12 minutes and warm sauce gently on the stove, thinning with broth if necessary.
Nutrition
Carbohydrates: 5 g |
Protein: 1 g |
Fat: 7 g |
Sodium: 943 mg