Easy Vegetarian Kofta Curry

Ingredients (20)

• + 1 tablespoon olive oil add to pantry
• + 1 tablespoon butter add to pantry
• + 1 teaspoon cumin seeds add to pantry
• + 3 green cardamom pods add to pantry
• + 2 whole cloves add to pantry
• + 1 cinnamon stick add to pantry
• + 1 bay leaf add to pantry
• + ½ onion, grated add to pantry
• + 1 (2 inch) piece ginger root, peeled and grated add to pantry
• ✓ 1 clove garlic, crushed
• + 1 (14.5 ounce) can diced tomatoes add to pantry
• + 1 teaspoon ground coriander add to pantry
• + ½ teaspoon ground turmeric add to pantry
• + ½ teaspoon ground cumin add to pantry
• + ½ teaspoon garam masala add to pantry
• + ½ teaspoon cayenne pepper add to pantry
• ✓ ½ teaspoon salt, or to taste
• + ¼ cup whole milk yogurt add to pantry
• + 24 frozen meatless vegetable meatballs (such as IKEA®'s frozen vegetable balls) add to pantry
• ✓ ¼ cup hot water, or as needed