I've made it many times since, and it comes out perfectly every time. Its really simple and a lovely tribute to Kerala food, thats always slightly sweet and very tasty.

Olan (Pumpkin with Coconut Milk)
1 cup Pumpkin, cubed
3 Green Chillies, julienned
1 Onion, julienned
1 tsp Ginger, shredded
4 Curry Leaves
1 cup Coconut Milk
1 tsp Coconut Oil (optional, and you could use whatever oil is at hand)
Salt, to taste
Cook the pumpkin, chillies, onion and curry leaves in a little water (just enough water to cook the pumpkin).
When the pumpkin is cooked and soft, add salt. Continue cooking until the dish thickens.
When the curry is thick, add the coconut milk and oil. Let it heat together on a low flame for another minute or two. Remove from heat.
Serve with steamed rice.