Spiced aubergine bake

Name: Spiced aubergine bake
Prep time: 15 min
Cook time: 55 min
Total time: 1 h 10 min
Cuisine: Indian
Ingredients: 4 aubergines cut into 5mm-1cm slices; 3 tbsp vegetable oil; 2 tbsp coconut oil; 2 large onions chopped; 3 garlic cloves crushed; 1 tbsp black mustard seeds; ½ tbsp fenugreek seeds; 1 tbsp garam masala; ¼ tsp hot chilli powder; 1 cinnamon stick; 1 tsp ground cumin; 1 tsp ground coriander; 2 x 400g cans chopped tomatoes; 200ml coconut milk; sugar to taste; 2 tbsp flaked almonds; small bunch coriander roughly chopped (optional)