Curried Lamb

Ingredients

• 2 tablespoons vegetable oil, or as needed
• 2 pounds cubed lamb stew meat
• 2 tablespoons vegetable oil
• 1 onion, chopped
• 2 tablespoons ground coriander
• 1 1/2 teaspoons ground cumin
• 1 tablespoon ground cardamom
• 1 teaspoon ground ginger
• 1 teaspoon ground turmeric
• 1/2 teaspoon garlic powder
• 1/4 teaspoon ground black pepper
• 1/4 teaspoon cayenne pepper, or to taste
• 2 cups beef stock
• salt to taste
• 1/4 cup plain yogurt
• 1 teaspoon lemon juice