Chicken and Rice Soup with Garlicky Chile Oil | Umami

Ingredients

• 1 small onion
• 6 garlic cloves
• ⅔ cup white rice, preferably short grain
• ¼ cup plus 2 Tbsp. vegetable oil
• 2 tsp. crushed red pepper flakes
• 1 lb. skinless, boneless chicken thighs
• 2½ tsp. kosher salt, divided
• 1 large bunch Tuscan kale
• 1 lemon
• 3 sprigs dill
• Freshly ground black pepper