Hoppin' John | Umami

Ingredients

• 4 tbsp. butter
• 1 large onion, diced
• 4 cloves garlic, minced
• 1 green bell pepper, diced
• 2 stalks celery, diced
• 1 lb. dried black eyed peas
• 5 c. low-sodium chicken broth, plus more as needed
• 1 whole ham hock
• Kosher salt and pepper, to taste
• Cayenne pepper, to taste
• 2 tbsp. white vinegar
• White or brown rice, to serve