Toss in the ham hocks, chicken stock, snapped green beans, garlic powder, onion, kosher salt, black pepper, red pepper flakes, and red vinegar. Stir well. Set your slow cooker to LOW (8+ hours) or HIGH (6-8 hours).
2 smoked ham hocks, 6 cups low-sodium chicken stock, 2 teaspoon granulated garlic, ¼ yellow onion, ½ tablespoon kosher salt, 1 teaspoon black pepper, ½ teaspoon red pepper flakes, 1 teaspoon red wine vinegar