Cook an entire head of cauliflower as if it were a pot roast

Cauliflower is rich in vitamins C, B and K and several mineral salts, and roasting a head of cauliflower gives you all that in a one-pot meal.
March 1, 2022

Some foods, such as the chicken breast or a block of tofu, are a sort of “canvas” against which a cook can paint other and ancillary flavors, aromas, even textures.

Enjoy this recipe for roasting a head of cauliflower as if it were a pot roast.
Enjoy this recipe for roasting a head of cauliflower as if it were a pot roast. Photo by Bill St. John, for UCHealth.

The cauliflower is such a canvas. It has its own charms: its comely appearance, its cooked creaminess, nearly a nut butter when soft. But it also takes on any enticing flavor handed to it. Louis XIV of France enjoyed it braised in chicken or veal stock, flavored with a sprinkle of nutmeg and slathered in sweet butter—to this day, a delicious recipe.

The cauliflower is one of the roughly 400 species of cabbage, Brassica oleracea; along with broccoli (from which it originally was “trained” or propagated), a flowering cabbage. All cabbages are among the more ancient of vegetables, grown and eaten before recorded history in especially the regions of Europe and the Near East.

A studio portrait of a head of cauliflower, which can be roasted much like a pot roast.
The head of cauliflower can be roasted much like a pot roast. Photo by Bill St. John, for UCHealth.

New, genetically modified versions of cauliflower appear nowadays, such as orange cauliflower (with 25 times the vitamin A of the common white version) and cauliflower’s cousin, the Romanesco, colored the flesh of the avocado or the liqueur Chartreuse and whose futuristic fractals have been studied by architects to find new models for buildings.

The cauliflower is also extraordinarily versatile in the kitchen: it may be eaten raw, lightly cooked, “riced,” cooked through then mashed or puréed, steamed, braised, roasted, sautéed, stir-fried or simply boiled. And, again, with any of these preparations, most any extra flavoring presents itself as a helpmate.

I have learned a new way of breaking the cauliflower into florets, something I always found annoying because of the cauliflower head’s tendency to “rice” or send its wee white ball bearings all over the cutting board, kitchen counter and floor. After removing what you wish of its core, slice it into slabs about 3/4-inch to 1-inch thick. Lay a slab down flat and cut out or along any branch, breaking away the size of floret that you’re after.

To rice cauliflower (on purpose, ha) simply grate the head against the large holes of a box grater or pulse it up to eight times in the bowl of the food processor. Watch out for the BBs; they’ll be everywhere.

Shop for cauliflower (now available year-long) by picking up a head; it should feel heavy for its size. The florets ought to be tightly packed together, with no large grey or brown spots to mar them and with whatever leaves are present firmly clinging. Store in the refrigerator by removing its plastic wrapping, wiping it down and re-wrapping it in paper toweling and another plastic bag.

Cauliflower is rich in vitamins C, B and K and several mineral salts. Its levels of vitamin C are higher than orange juice.

Whole Cauliflower Pot Roast

Adapted from, Jamie Oliver’s “Jamie Cooks Italy” and Cook’s Illustrated “Vegetables Illustrated.”  Do not omit the anchovy; it lends much umami and any fish flavor disappears in cooking. Salted, dried capers are available at finer grocery stores such as Whole Foods, Tony’s Market or Marczyk Fine Foods; do not omit them either. Serves 4-6.

Ingredients for roasted whole cauliflower recipe

1 whole head cauliflower, outer leaves removed and stem cut off at the base

1 28-ounce can tomatoes (whole peeled or large diced)

1 14-ounce can tomatoes (whole peeled or large diced)

3 tablespoons olive oil

2 medium onions, peeled, quartered and each quarter broken up into its “petals”

6 oil-cured anchovies (or 2 teaspoons anchovy paste)

6 cloves garlic, peeled, smashed and rough-chopped

1/3 cup dried golden or green raisins

1/4 teaspoon red pepper flakes (or more, to taste)

1/2 teaspoon herbes de Provence, crumbled in palm of the hand (or more, to taste)

1/2 cup green or kalamata olives, pitted

3 tablespoons salted, dried capers, rinsed well and squeezed

Chopped fresh flat-leaf parsley, for garnish

Directions for roasting a head of cauliflower

As if coring the top of a tomato or apple, remove a cone-shaped section from the bottom of the core of the cauliflower. Set the head aside.

To a food processor, add the tomatoes in batches and pulse 7-8 times, until rough-chopped. Pour each batch into a bowl or container so the processor bowl does not leak.

Enjoy other great recipes and tips from Bill St. John.

Heat the oven, with a rack in the lower middle, to 450 degrees. In a large, heavy-bottomed pot, Dutch oven or cocotte that will fit, covered, the whole head of cauliflower standing up on its base, warm the olive oil over medium-high heat and toss in the petals of onion, letting them begin to wilt and turn translucent (6-8 minutes, stirring occasionally).

Remove the onions to a side bowl with a slotted spoon or spider. In the oil in the pot, cook the garlic and the anchovies (or anchovy paste), breaking them up, for 30-45 seconds, just until aromatic. Toss in the raisins, red pepper flakes, herbes de Provence, olives and capers and cook and mix everything well, 2 minutes.

Reintroduce the onions to the pot, then the pulsed tomatoes, stir well and bring to a simmer. Nestle the head of cauliflower down into the sauce, stem side up, spooning some of the sauce over the cauliflower. Cover the pot and place in the preheated oven for 30 minutes.

Remove the pot and, using large tongs or two large spoons, on either side of the cauliflower head, gently turn over the head of cauliflower in the sauce, now putting it stem side down. Spoon some more sauce over the cauliflower, and put the pot back in the oven, now uncovered, for 10-15 minutes more, until the blade of a thin knife easily enters and exits the head of cauliflower at its center.

Remove and let the pot sit to rest, uncovered, for 12 minutes. Cut the cauliflower into wedges and serve with generous spoonfuls of the sauce and other vegetables, garnished with the chopped parsley.

Reach Bill St. John at [email protected]

About the author

For more than 40 years, Bill St. John’s specialties have been as varied as they are cultured. He writes and teaches about restaurants, wine, food & wine, the history of the cuisines of several countries (France, Italy, Spain, Belgium, and the USA), about religion and its nexus with food, culture, history, or philosophy, and on books, travel, food writing, op-ed, and language.

Bill has lent (and lends) his subject matter expertise to such outlets as The Rocky Mountain News, The Denver Post, The Chicago Tribune, 5280 Magazine, and for various entities such as food markets, wine shops, schools & hospitals, and, for its brief life, Microsoft’s In 2001 he was nominated for a James Beard Award in Journalism for his 12 years of writing for Wine & Spirits Magazine.

Bill's experience also includes teaching at Regis University and the University of Chicago and in classrooms of his own devising; working as on-air talent with Denver's KCNC-TV, where he scripted and presented a travel & lifestyle program called "Wine at 45"; a one-week stint as a Trappist monk; and offering his shoulder as a headrest for Julia Child for 20 minutes.

Bill has also visited 54 countries, 42 of the United States, and all 10 Canadian provinces.