Moroccan beef meatballs

Ingredients

• 2 slices white bread (90g)
• 1/2 cup (125ml) milk
• 1 kilogram minced (ground) beef
• 1 egg
• 2 tablespoons finely chopped fresh coriander (cilantro) roots and stems
• 1 tablespoon ground cumin
• 1 tablespoon ground coriander
• 1 tablespoon sweet paprika
• 2 teaspoons ground ginger
• 1 teaspoon ground cinnamon
• 1 large brown onion (200g), chopped finely
• 4 cloves garlic, chopped finely
• 1 tablespoon olive oil
• 2 tablespoons tomato paste
• 700 grams bottled passata
• 1/2 cup (125ml) beef stock
• 2 tablespoons honey
• 1/2 cup firmly packed fresh coriander leaves (cilantro)