Onion

This quick and easy tomato sauce is the base for two meals: spaghetti marinara and steamed mussels with tomato broth. We call for canned tomatoes because most of the fresh ones available in the wintertime have a bland flavor and mealy texture. Sugar will help round out the flavor if your tomatoes are too acidic. You can also add a pinch of red pepper flakes if you like your sauce to have a bit of heat. The leftover sauce also freezes well for future meals.

This tender chuck roast makes two meals. Most of the meat is sliced and served with onion gravy, accompanied by egg noodles, and the rest gets shredded and saved for a warm beef salad . You might want to round out the first meal with a green salad or sautéed spinach.

This lively salsa is typically served with Argentine asado—beef, pork, or lamb cooked over an open fire or grill. It's also wonderful with a seared skirt steak.

Miso, a salty, earthy Japanese bean paste, is rich in vitamin B and protein. White miso, also known as shiro miso, has a more delicate flavor than darker miso pastes. Mirin is a sweet golden wine made from glutinous rice; it is essential to Japanese cooking. Both ingredients can be found in the Asian foods section of some supermarkets, at some natural foods stores, and at Japanese markets.

Espagnole is a classic brown sauce, typically made from brown stock, mirepoix, and tomatoes, and thickened with roux. Given that the sauce is French in origin, where did the name come from? According to Alan Davidson, in The Oxford Companion to Food, "The name has nothing to do with Spain, any more than the counterpart term allemande has anything to do with Germany. It is generally believed that the terms were chosen because in French eyes Germans are blond and Spaniards are brown."

To make these celery root latkes a little easier, you can shred the potatoes, onions, and celery root in a food processor with the shredding disk.

Flavia Schepmans of New York, New York, writes: "One of many Belgian regional variations, this beef stew hails from my mother's natal city, Ghent." Our associate art director Flavia Schepmans's mother uses American-style beer in this recipe. If you want to try another beer, go for a Belgian ale — an imported pilsner might be too bitter.

English farmhouse-style white Cheddars such as Montgomery, Keen's, and Fiscalini were delicious in this pie. We also liked Grafton Cheddar, from Vermont.

As this soup cooks, the kitchen will quickly fill with the tantalizing aroma of leeks stewing in butter with pumpkin, curry, and spices.