1 tablespoon olive oil |
1/2 cup finely chopped onion |
1/4 teaspoon cascabel chili powder |
1 tablespoon ancho chili powder |
2 tablespoons fresh lime juice |
1/2 pound unsalted butter, softened |
salt and freshly ground pepper |
8 maine lobster tails |
olive oil |
salt and freshly ground pepper |