Ingreadient

• 3 tablespoons unsalted butter
• 3 tablespoons all-purpose flour
• 1 tablespoon japanese curry powder (see tip)
• 2 tablespoons neutral oil, such as canola or avocado, divided
• 1 medium yellow onion, coarsely chopped
• 1 pound boneless, skinless chicken thighs, trimmed and cut into 1 1/2-inch pieces
• 2 cloves garlic, minced
• 1 teaspoon grated fresh ginger
• 2 medium potatoes, peeled and cut into 1/2-inch pieces
• 1 medium carrot, diced
• 1 medium green bell pepper, sliced
• 1 spicy chile pepper, such as serrano or thai chile, seeded and minced (optional)
• 3 cups low-sodium chicken broth
• 1 tablespoon red miso
• 1 teaspoon reduced-sodium soy sauce
• 1 teaspoon rice vinegar
• ½ teaspoon salt
• ¼ teaspoon ground pepper