Cebollas Tatemadas del Bajio

Guanajuato, Bajio adentro, is where these cebollas tatemadas belong: on a clay plate beside carnitas, barbacoa de hoyo, pacholas, or frijoles bayos refritos. Dolores Hidalgo knows this food. So does the Mercado de la Cruz in Queretaro. The onion goes whole to the comal, skin and all, because the burned outside protects the heart until it turns soft and sweet.

The acid here is xoconostle, not vinegar. Don't replace it with a squeeze of lime and pretend nothing happened. Xoconostle is the Otomi sour fruit of this region, sharper and earthier than tuna, with a bite that cuts through fat the way a good market cook understands without explaining too much. The chilcuague gives a warm, tingling edge from the Sierra Gorda. Use a little. It speaks loudly.

I learned this kind of side dish from women who cooked around the main pot, not from recipes that treat vegetables like decoration. While the meat rests or the beans thicken in manteca, the onions sit on the comal until they blacken. Then you peel away the burned skin, cut them open, and dress them while they are still glossy and hot. La cocina no es decoracion, es trabajo.

Serve them in barro sencillo, not poblano talavera, not a fine plate pretending to be rancho. Cazuela de barro, tortillas de maiz, frijoles bayos on the side. Cada estado, su propia cocina.