Classic British Chip Shop Curry Sauce Recipe - Quick and Authentic - My Homemade Recipe

Ingredients

• 2 1/2 tbsp (40g) butter
• 1 medium white onion, finely diced
• 1 small carrot, finely diced
• 3 cloves of garlic, finely diced
• 1/2 small sweet red apple, peeled & finely diced
• 1 tbsp mild curry powder
• 1/4 tsp Chinese 5 spice
• 1/2 tsp salt, or to taste
• 1/4 tsp white pepper
• 480ml (2 cups) chicken stock
• 1/2 tsp malt vinegar
• 1 tbsp cornflour/cornstarch