Kharcho Stew with Mchadi

Ingredients

• 2 pounds boneless beef chuck, cut into 1.5-inch cubes
• 2 tablespoons vegetable oil
• 1 large yellow onion, chopped
• 4 cloves garlic, minced
• 6 cups beef broth
• 1 (15-ounce) can crushed tomatoes
• 1/2 cup white rice, uncooked
• 1/2 cup walnuts, finely ground
• 1/4 cup fresh cilantro, chopped (plus more for garnish)
• 2 tablespoons apple cider vinegar (or red wine vinegar)
• 1 tablespoon paprika
• 1 teaspoon ground coriander
• 1/2 teaspoon fenugreek powder (optional, or skip)
• 1/4 teaspoon cayenne pepper (optional)
• 2 teaspoons salt
• Salt
• freshly ground black pepper