Pork Meatballs with Celeriac and Apple

Name: Pork Meatballs with Celeriac and Apple
Prep time: 35 min
Cook time: 1 h 10 min
Total time: 1 h 10 min
Yield: 4 portions
Ingredients: 80 g bread; 80 g onions; 1 garlic clove; 5 - 8 sprigs fresh thyme; 500 g pork mince; ¼ tsp ground nutmeg; ¼ tsp ground mace; 1 tsp fine sea salt; ½ tsp ground black pepper; 750 g celeriac; 1 Granny Smith apple; 150 g water; 100 g milk; 1 tsp fine sea salt; ¼ tsp ground black pepper; 40 g onion; 1 garlic clove; 30 g olive oil; 40 g unsalted butter; 60 g plain flour; 200 g chicken stock; 300 g cider; 200 g double cream; 1 Tbsp Dijon mustard; 1 tsp fine sea salt; ¼ tsp ground black pepper; ½ tsp caster sugar; vegetable oil