Braised Kale

Ingredients

• 1 tbsp olive oil
• 1 1/2 cups thinly sliced onion
• 1/3 cup thinly sliced garlic
• 10 cups loosely packed chopped kale
• 1 cup fat-free lower-sodium chicken broth
• 1 cup water
• 3/4 tsp crushed red pepper
• 2 tsp red wine vinegar
• 1/4 tsp salt
• 1/4 tsp black pepper