Miso stir-fried pork and aubergine

Ingredients

• 1 aubergine
• 2 leeks
• 1 spring onion
• 1 clove of garlic
• 1 knob of ginger
• 1 tbsp vegetable oil
• 1 pork shoulder steak thinly sliced
• 2 tbsp miso (adjust depending on saltiness of miso)
• 2 tsp sugar
• 1 tbsp mirin
• 1 tbsp cooking sake
• 1 tbsp soy sauce
• 2 tbsp water
• 2 servings of cooked Japanese rice