Smoky dal

Name: Smoky dal
Ingredients: * 1 small red onion; * 1 generou dash of olive oil; * 250g (preferably firm) potato; * 2 tb curry mix; * 2 tb garam masala; * 4 green cardamom pod; * 1 or 2 big brown cardamom pod (depending on how smoky you want the; dish to be); * 1 tb 1/2 coriander seed; * 1 tb 1/2 cumin seed; * 1/2 tsp of smoked paprika; * 250g red lentil; * 200g coconut milk or cream (i prefer cream); * 300 g water; * 400g canned tomato (crushed, diced or whole cut in 2); * salt and pepper; * fresh coriander cilantro (around 1/2 a bunch)