1 tablespoon plus 1 teaspoon olive oil, divided
1 pound bone-in chicken legs and/or thighs
1/4 cup chopped fresh cilantro, divided
3 garlic cloves, minced, divided
1 bunch radishes, quartered
2 leeks, cut into 2-inch segments and split lengthwise
8 rainbow carrots, sliced
4 tomatillos, husks removed
1 serrano chili pepper
1 lime, juiced
1/4 cup water