Tomatillo-avocado slaw:
2 tomatillos, husked and halved
2 tablespoons cilantro
1 small jalapeño, coarsely chopped
1 garlic clove, coarsely chopped
6 tablespoons sour cream or Greek yogurt
1 ripe avocado, halved, peeled, and pitted
salt to taste
lime juice to taste
½ head cabbage, cored and finely sliced

Salmon:
1 teaspoon ground cumin
1 teaspoon chili powder
½ teaspoon brown sugar
¼ teaspoon finely ground coffee
Salt and freshly ground black pepper
2 (8-ounce) salmon fillets
1 tablespoon olive oil
juice of ½ lime

For serving:
12 small flour or corn tortillas, heated and wrapped to keep warm
hot sauce, for serving