Yogurt Lamb Curry

Ingredients

• 2 units Onions
• 3 units Garlic cloves
• 1 kg Lamb shoulder (European)
• 3 units Plain full‑fat yogurt
• 200 g Butter
• 2 tbsp Spice blend 1 (cumin, coriander, turmeric, garam masala, chili)
• 2 tbsp Spice blend 2 (cumin, coriander, turmeric, garam masala, chili)
• 1 tsp Final spice blend (coriander seeds, caraway seeds, etc.)
• 1 tbsp Cornstarch
• 300 g Basmati rice