1/2 cup olive oil
1 kg sliced zucchini
1 garlic clove, finely chopped
1 teaspoon coriander seeds, coarsely crushed
Salt and black pepper
Juice of 1/2 lemon
Heat 2 tablespoons of the oil in a large saucepan at a moderate heat. Tip in zucchini, garlic and coriander seeds. Lower heat,cover and cook for about 20 minutes, or until tender.
Blend in a processor(I used a stick blender) until chunky, add lemon juice, salt and pepper and gradually add oil and process until smooth or desired consistency.
I just happened to have a coriander plant going to seed in the garden. If you don't have the seeds, don't worry, don't add them. Consider using parmesan cheese or a fresh herb like basil or mint in the final process.