Cauliflower gets a bad reputation. Overboiled into mush, roasted without seasoning, served as an apology for not having anything else. Roast it whole with a Dijon and smoked paprika crust and it becomes a different vegetable entirely. The outside chars slightly. The inside steams in its own moisture. It takes about an hour at 375°F and comes out looking like something you’d serve to guests, which you can. This recipe is vegan and gluten-free by default, and it works as a main for two or a side for four.
The mustard and vegetable broth in the coating do two things: they help the spices stick and they add a slight tang that cuts from the roasted cauliflower fat. Turmeric is in there too. It turns the crust a deep golden color that looks intentional rather than accidental.
How to Make Whole Roast Cauliflower
Trimming the cauliflower
Remove the outer leaves but keep the base intact so the cauliflower sits flat. Trim just enough of the base to stabilize it without cutting into the florets. A wobbly cauliflower tips in the pan and cooks unevenly. 
Applying the coating
Whisk the Dijon, water, oil, and spices until smooth before brushing. Get the coating into every crevice between the florets; those are the spots that develop the best crust. A pastry brush works better than a spoon here.
When it’s done
A skewer or thin knife inserted into the center should meet no resistance. The outside should be deeply golden and slightly firm. If the surface is browning fast but the center isn’t cooked, tent loosely with foil and keep going.
How to Whole Roast Cauliflower
- Total Time: 55 minutes
- Yield: Serves 4
- Diet: Vegetarian, Gluten-Free
Description
A simple whole roasted cauliflower recipe with smoky paprika and Dijon. Perfect as a flavorful side dish.
Ingredients
- 1 larger head of organic cauliflower
- 2 tbsp Dijon mustard
- 3 tbsp (44 ml) veg broth
- 2 tbsp (30 ml) water
- 1 tbsp (15 ml) oil
- 1 tsp smoked paprika
- 1 tsp ground cumin
- 0.5 tsp garlic powder
- 0.5 tsp tumeric powder
- Salt
Instructions
- Preheat your oven to 375°F (190°C).
- Wash and trim the leaves off of your cauliflower head, being careful not to cut off any florets.
- Add a drizzle of olive oil to the bottom of your pan or small baking dish.
- In a bowl, whisk together Dijon mustard, 2 tablespoons of water, olive oil, and seasonings.
- Brush the mixture all over the cauliflower head.
- Place the prepared cauliflower in your pan or baking dish.
- Pour 3 tablespoons of broth into the bottom of the pan, not over the cauliflower.
- Bake for 35-60 minutes, or until fork tender (cooking time depends on the size of the cauliflower).
Notes
- For even roasting, cut a larger cauliflower into florets before roasting; adjust cooking time accordingly.
- To enhance the smoky flavor, add a pinch of chipotle powder to the spice blend.
- Leftover roasted cauliflower can be stored in the refrigerator for up to 4 days and added to salads or grain bowls.
- Prep Time: 10 minutes
- Cook Time: 45 minutes
- Category: Side Dish
- Method: Roasting
- Cuisine: American
Nutrition
- Serving Size: 1/4 cauliflower
- Calories: 150
- Sugar: 5
- Sodium: 200
- Fat: 8
- Saturated Fat: 1
- Unsaturated Fat: 6
- Carbohydrates: 25
- Fiber: 5
- Protein: 5
- Cholesterol: 0
Frequently Asked Questions
How long does it take to whole roast a cauliflower?
At 375F, a large head of cauliflower takes 60 to 75 minutes. It is done when a sharp knife slides into the center with no resistance.
Do I need to remove all the leaves before roasting?
Trim the outer leaves but leave the inner pale leaves intact. They protect the florets and caramelize nicely during roasting.
Can I use regular mustard instead of Dijon?
Dijon gives a sharper, more complex flavor that holds up well with the spices. Yellow mustard will work in a pinch but is milder and sweeter.
How do I get the glaze to stick to a round cauliflower head?
Use a pastry brush to work the glaze into all the crevices between the florets. Reapply halfway through roasting for a deeper, more caramelized coating.
