Roasted cauliflower steaks with red pepper sauce for slow Sundays

There's a particular kind of evening where you want dinner to feel like a small celebration without spending two hours by the stove. A whole cauliflower, sliced into thick slabs and roasted until the edges catch, fills the kitchen with the kind of scent that pulls people out of their rooms to ask what's cooking. Spooned over the top, a glossy red pepper sauce brings sweetness, smoke, and a little brightness, turning a humble brassica into something that holds its own next to a piece of grilled fish or a bowl of herby grains.

This dish has become a regular in my kitchen through the cooler half of the year, when cauliflowers arrive dense and sweet from growers in Victoria and southern New South Wales. It also suits the way many Australian households actually cook: one tray in the oven, a quick blender sauce, and whatever else you have lying around to round it out. Whether you're feeding a family in Brisbane or making dinner for one in a small Melbourne flat, the method scales without fuss.

Picking a good cauliflower head

A good steak starts with a good head. Look for a cauliflower that feels heavy for its size, with tightly packed florets and a creamy white surface that hasn't started to yellow. Loose, airy heads tend to be woody at the core and will fall apart when you try to slice them. If you're shopping at a farmers' market in Adelaide or browsing the produce section of your local greengrocer, ask which farm the cauliflower came from. Heads grown in the Adelaide Hills or the Lockyer Valley generally have a denser texture than those that have travelled further.

When you get it home, leave the whole head on a chopping board and trim only the tough outer leaves. Stand it upright, then cut straight down through the centre with a sharp, heavy knife. From one head you get two generous steaks, plus the loose florets that fall away from the sides. Don't throw those loose pieces out. Toss them with a little oil and salt, spread them on the tray around the steaks, and they roast into the kind of crisp little nuggets that disappear before they hit the table.

A quick sauce built on red capsicum

The sauce is where this recipe becomes more than the sum of its parts. Red capsicum is the backbone, and Australian-grown capsicums are at their sweetest between December and March, though greenhouse varieties from places like Bundaberg and the Sunraysia keep a steady supply through the rest of the year. From a flavour perspective, you have options for how you bring that sweetness out.

If you are using fresh peppers, the trick is patience. Let the skins blacken properly so the flesh underneath becomes soft enough to slip off its jacket. The flesh, blended with a splash of good Australian extra virgin olive oil, a small garlic clove, a spoon of toasted almonds or a few cashews, and a squeeze of lemon, turns into a sauce that tastes far more luxurious than the effort involved. A pinch of salt, a grind of black pepper, and a small splash of cold water to loosen the consistency, and you have a sauce worth spooning onto almost anything.

Roasting the steaks until the edges char

Heat matters more than seasoning when you're cooking thick vegetable slices. Preheat the oven to 220°C with a wide tray inside so the steaks start sizzling the moment they touch metal. Brush both sides of each steak with olive oil and season generously with flaky sea salt. Lay them flat on the hot tray and resist the urge to move them for at least twelve minutes. You want a deep, even crust on the underside before you turn them.

After the first side has taken on colour, flip the steaks carefully with a wide spatula and roast for another ten to twelve minutes. The florets around the edges should be almost burnt at the very tips, and the centre of each steak should give just slightly when pressed. If you prefer a softer texture, drop the oven to 200°C and extend the cooking time by five minutes. For a more steak-like chew, finish the steaks under the grill for two minutes to get extra charring on top.

A small note on Australian ovens: many run a touch hotter than the dial suggests, particularly older units in Queensland rentals and farmhouses. If you have ever had biscuits burn before their time, drop the temperature by 10°C and trust the visual cues instead of the clock.

Serving it across the week

Thick cauliflower slices with their glossy sauce sit beautifully in the middle of a plate, but the accompaniments are where you can make the meal feel new each time. A bowl of farro gives the dish a nutty, chewy base that soaks up the sauce, and farro holds its shape better than many other grains when served at room temperature. If you are new to cooking with whole grains, A Beginner's Guide to Cooking with Farro is a gentle place to start. A handful of rocket or watercress, a scatter of toasted pine nuts, and a spoonful of the warm sauce over the top turns the plate into something composed without being fussy.

For a heartier plate, serve the steaks alongside roast chicken thighs or a piece of pan-fried snapper, with a wedge of flatbread from the previous day's leftovers. In warmer months, the same combination works cold: slice the steak into thick coins, spoon over the sauce, and serve on a platter with boiled eggs and olives for an Australian-style lunch that travels well to a picnic in the park.

Cooking with the Australian seasons

Cauliflower is one of those vegetables that has a real personality across the year. From late autumn through to early spring, the cool-climate harvests in regions like the Huon Valley in Tasmania and the Southern Highlands of New South Wales produce dense, sweet heads with tight, milky florets. In the middle of winter, when the temperature in Melbourne can drop into single digits, a tray of cauliflower steaks warming the kitchen feels particularly welcome.

Summer cauliflowers, by contrast, tend to be looser, with a slightly grassy flavour. They are still lovely roasted, but you may want to lean a little harder on the sauce and add a generous squeeze of lemon to balance the freshness. The Australian Food Safety Standards remind us that any cut vegetables left at room temperature should not sit out for more than two hours, so if you are entertaining, keep the sauce and the steaks separate until just before serving, particularly on hot Brisbane afternoons.

Storing, reheating, and using up the bits

The beauty of this dish is that almost every part of it keeps well. Roast a double batch on Sunday and you have a head start on a couple of easy meals during the week. The steaks themselves will keep in the fridge for three to four days in a sealed container, and they reheat best in a hot oven rather than a microwave, which can make the texture rubbery. Five minutes at 200°C is usually enough to bring back the crust without drying out the centre.

The sauce keeps for five days in the fridge and freezes well in small containers or ice cube trays for single servings. A cube or two dropped into a pan of sautéed garlic and tomatoes becomes the base for a quick pasta sauce. Stirred through cooked chickpeas with a little lemon juice, it turns into a thick, almost dip-like topping for toast. Any extra roasted florets that didn't make it onto a plate can be folded through a grain salad with a few currants, a little parsley, and a splash of olive oil the next day.

If you make this once, you'll find yourself returning to it all through the cooler months. Slice a second head while you're at it, roast them both on the same tray, and tuck a jar of the sauce into the fridge for a slow Tuesday when you don't feel like thinking too hard. Subscribe to the newsletter below for a new seasonal recipe each month, and share your version in the comments.