Another extremely simple winter tomato sauce recipe, in which you can use whatever winter vegetables you might have around and canned tomatoes to make a sauce that can be served either thick and chunky or pureed.
The first thing to do is strain the tomatoes, reserving the liquid. You will want to use about 2 cups / 1 L. of tomatoes and juice, or the contents of a 35 oz can. I usually also squeeze or cut open the tomatoes to let the juice inside them out, but this isn’t strictly necessary. Keep the juice and drained tomatoes separate until needed.
Next, prepare your vegetables. I use between 4 and 5 ounces each of three different vegetables. You should shoot for roughly equal amounts of each vegetable. First I use either celery or onion, chopped into medium size dice. Then I peel and cut into medium dice either carrots or parsnips. Lastly I prepare either kohlrabi, turnip, long radish or celery root in pieces of the same size as the other ingredients. If you like garlic in this, add an ounce or so chopped very fine. Remember to keep all your vegetables separated, as they require different cooking times.
Add two to three tablespoons of olive oil to a wide sautée pan, preferably one with deep sides. Bring the oil to heat over medium heat. Add the vegetables one at a time and cook each until softened. The best order is onions or celery to start, then carrot or parsnip, then the last. Cook each vegetable just until softened, about 5-10 minutes for each. Add the garlic last of all, and cook for only a few minutes before proceeding. You may also wish to add bay or bayberry leaf or whole sprigs of thyme or rosemary at this point, taking care to remove them before pureeing or serving the sauce.
Once the garlic has been cooked, add the whole tomatoes to the pan, breaking them into chunks with a flat-ended wooden or plastic spatula. You may chop them prior to adding to the pan, but I always find that such a mess and prefer to simply break them into pieces while they sautée. Cook the tomatoes for at least five minutes, keeping the heat around medium.
Add the reserved tomato juices to the sautée pan. At this point, you may wish to add stock or water to thin the sauce out. I would only recommend this if it is your intent to puree the sauce. With about 5 oz of each vegetable, this makes a substantial quantity of sauce, enough for more than one pound of pasta. I will often serve the sauce thick with some pasta, then puree whatever is leftover with added stock to make a sauce that I can put on eggs or a half-pound of spaghetti. One could also add chiles or cream or another ingredient to this newly-pureed sauce for the sake of variety.
Whether you add tomato juice with stock or water or nothing else, the liquids must be cooked down slightly. I usually leave the pan at a slow, steady simmer for about 45 minutes to an hour, stirring occasionally. Less can be fine, but the flavor will not be as rich. In any event, make sure before serving that all the vegetables are cooked through and as tender as you would like them. Finally, add salt, freshly ground black pepper, and dried or fresh herbs to taste. With a winter sauce like this I will often add a quick crumble of marjoram or oregano or sage, depending on what herbs I’ve added during the cooking stage.
Serve as-is or puree and serve over pasta, with or without cheese.