First, gather all your ingredients and prepare them in the right amounts. That makes it so much easier and more fun and you're less likely to forget anything.
Sauté onions and ginger in a little plant oil in a medium pot at medium to high heat a moment, then add garlic and curry powder. Add pumpkin and stir well.
Then add coconut milk, water, veggie broth, peanut butter, ketjap manis and sambal oelek. Stir well, bring to a boil and simmer for 15 minutes at medium temperature. Stir from time to time to make the starch from the pumpkin thicken the sauce.
Wash and dry cilantro, then chop the leaves. I like to use a salad spinner.