Why a Big Pan of Tomato Sauce Is Worth the Effort

Late summer is when tomatoes hit their peak — whether you have a glut from a greenhouse, a bargain box from the market, or a windowsill of ripening fruit that you can't keep up with. Cooking one enormous pan of sauce and freezing it in portions is one of the most genuinely useful things you can do in a small kitchen. It costs you an afternoon, and it pays you back on every grey Tuesday between now and spring.

The maths is simple: around 4kg of ripe tomatoes (or six 400g tins when fresh ones are poor) will give you roughly 2.5–3 litres of finished sauce. That's about ten pasta dinners for two, or a dozen pizza bases, plus a few spoonfuls left over for baked eggs on a Sunday morning. A single shelf in a small freezer is all you need if you freeze the tubs flat.

Choosing and Preparing Your Tomatoes

Flavour matters more than variety names. Choose tomatoes that smell sweet and feel heavy for their size. If you're using up a mixed glut, that's fine — a mix of sweet cherries, meaty plums and slightly sharper salad tomatoes makes a more interesting sauce than any single type.

• Fresh tomatoes: halve them and cut out the hard core. No need to skin if you're roasting — the skins slip off easily afterwards, or you can sieve them out.
• Tinned tomatoes: use whole plum tomatoes in juice rather than chopped, which are often firmer and sweeter. Crush them by hand in the pan.
• Frozen tomatoes: if you've bagged whole tomatoes in the freezer, tip them in still frozen. The skins will slide off as they heat.

Roughly 8–10 cloves of garlic for a 4kg batch, a good glug of olive oil, and a tablespoon of fine sea salt to start with. Add salt in stages — it concentrates as the sauce reduces.

The Base Method: Roast, Then Simmer

Roasting gives you a deeper, sweeter sauce than simmering alone, and it's much more forgiving if you get distracted.

Heat the oven to 180°C fan (200°C conventional, gas 6). Spread the halved tomatoes cut-side up over two large roasting trays — a single layer if you can manage it, though slight overlap is fine. Tuck whole unpeeled garlic cloves among them, drizzle generously with olive oil, and scatter over your herbs. Oregano and thyme hold up best in the oven; save basil for the end.

Roast for 45–60 minutes until the edges are catching and the juices have pooled and begun to caramelise. Let everything cool enough to handle, then squeeze the garlic from its skins.

Now decide on texture. For a rustic sauce, mash everything with a potato masher. For something smoother, push it through a sieve or use a stick blender — but pulse rather than blitz, or you'll whip air into it and turn it pale and frothy.

Return the sauce to your biggest pan and simmer gently, uncovered, for 30–50 minutes. This is the stage that matters most for pizza: you want a thick sauce that holds its shape on a base rather than making it soggy. Taste as you go. If it's sharp, add a pinch of sugar. If it's flat, a splash of red wine vinegar or a small knob of butter at the end will lift it. Stir through torn basil once it's off the heat.

Portioning, Cooling and Freezing

Cool the sauce quickly — spread it out in a wide tray rather than leaving it in a deep pan, and aim to get it into the freezer within 90 minutes of finishing cooking.

• 250ml tubs for pasta for two, or a generous sauce for meatballs.
• 150ml tubs for one large pizza base or two small ones.
• Ice cube trays for single spoonfuls — perfect for baked eggs, a quick soup, or loosening a stew.

Leave a centimetre of headroom in each tub, label with the date and contents, and freeze flat on a tray before stacking. Use within six months for the best flavour. Defrost overnight in the fridge, or drop the tub into a pan of warm water if you've forgotten — as you often will.

Faster Than a Takeaway: Three Ways to Use It

Pasta: warm a 250ml tub in a pan with a splash of the pasta water, add drained pasta and a handful of grated Parmesan, and toss until glossy. Ten minutes, start to finish.

Pizza: spread a thin layer of the thicker sauce over your base, leaving a border. Don't overload it. A little mozzarella, a few basil leaves, a hot oven, and it's better than most delivered versions.

Baked eggs: spoon 150ml into a small ovenproof dish, make two wells, crack in eggs, add a little cream or crumbled feta and a pinch of chilli, and bake at 190°C fan for 12–15 minutes until the whites are just set. Bread for dipping is not optional.

Growing Enough for a Batch in a Small Space

You don't need an allotment to make this worthwhile. A single grow bag on a sunny balcony or against a warm south-facing wall will happily carry three or four plants of a compact variety. Tumbling Tom and Gardeners' Delight both crop generously in pots, and a windowsill in a bright kitchen can manage a chilli plant alongside them for the sauce.

Feed weekly once the first truss sets, water consistently to avoid split skins, and pick as soon as the fruit is fully coloured — flavour develops on the vine, not in a bowl. Come September, when ripening slows, pick everything green and either ripen it indoors with a banana or turn it into a sharp green tomato chutney. Either way, nothing goes to waste — and there's a portion of summer waiting in the freezer when you need it most.