200g puree, 350ml water, appropriate amount. Added water in 200-100-50ml increments. 7g curry powder, appropriate amount.
Dice onion, carrot, and celery.
Cut potato and zucchini into large chunks.
Heat olive oil in a pot and sauté the onion, carrot, and celery.
Add potatoes, zucchini, and tomatoes, and stir-fry again.
Pour in water and tomato sauce.
Add bay leaves, salt, and pepper, and bring to a boil.
Simmer over medium-low heat for 15~20 minutes.
Taste, and season with additional salt and pepper if needed.