Ingredients 1 pound collard greens, torn 1 pound rhubarb, cut into 1-inch pieces 1 tablespoon olive oil 1 medium shallot, chopped 1 teaspoon cayenne pepper 1 teaspoon paprika 1 teaspoon cumin powder 1 cup home-prepared chicken or vegetable broth, unsalted salt and freshly ground black pepper, to [...]