Kashmiri meatballs with spinach raita

Ingredients

• 2 teaspoons vegetable oil
• 1 medium (150g) onion, chopped finely
• 2 cloves garlic, crushed
• 2 teaspoons grated fresh ginger
• 1/4 cup (60ml) madras curry paste
• 1/4 cup chopped fresh coriander leaves
• 1/3 cup (55g) finely chopped raisins
• 1/4 cup (35g) cashews, toasted, chopped finely
• 850 grams minced beef
• 1 bunch (500g) spinach, trimmed
• 3/4 cup (180ml) yoghurt
• 1 teaspoon lemon juice
• 1/2 teaspoon ground cumin
• 1/2 teaspoon caster sugar