Creamy Aubergine Curry

Ingredients

• 2 tablespoons of neutral-tasting oil
• 1 teaspoon of black mustard seeds
• 2 small-medium onions
• 1 small bulb of garlic (roughly 10 cloves)
• 1 thumb-sized hunk of fresh ginger, peeled
• 1 teaspoon of turmeric
• 1/2 a teaspoon of fenugreek
• 1 heaped teaspoon of smoked paprika
• 2 teaspoons of cumin
• 1 teaspoon of ground coriander
• (optional) 1/2 a teaspoon of chilli powder
• 1 teaspoon of salt
• 2 small-medium aubergines
• 1 400g tin of peeled plum tomatoes
• 80-160ml of double cream
• 1 large handful of fresh coriander
• 1 teaspoon of garam masala