- In medium saucepan, bring ½ cup water to a boil.
- Add fava beans and simmer until tender, about 8 minutes.
- Drain and set aside.
- Meanwhile, in dutch oven, heat 1 tablespoon oil over medium heat.
- Add garlic and stir 1 minute.
- Stir in Swiss chard and sprinkle with ½ teaspoon salt and ¼ teaspoon pepper.
- Cover and cook, stirring occasionally, about 5 minutes.
- Uncover and cook until tender, about 5 minutes more.
- Discard garlic; set Swiss chard aside.
- In large heavy skillet, preferably cast-iron, heat remaining 1 tablespoon oil over medium heat.
- Add corn and carrot and cook, stirring occasionally, until nicely toasted, about 10 minutes.
- Stir in fava beans, scallions, sage, remaining ¼ teaspoon salt and remaining ¼ teaspoon pepper and cook 1 minute more.
- Divide Swiss chard among serving plates and spoon succotash alongside.
- Serve with hot sauce.