Zucchini with chermoulla dressing

Name: Zucchini with chermoulla dressing
Cook time: 35 min
Total time: 35 min
Yield: 8
Ingredients: 2 tablespoon olive oil; 30 gram butter; 8 green zucchini (960g), halved lengthways; 1 red onion (100g), chopped finely; 2 clove garlic, crushed; 1/2 teaspoon hot paprika; 1 teaspoon each sweet paprika and ground cumin; 1/2 cup (125ml) olive oil; 2 tablespoon lemon juice; 1 cup finely chopped fresh flat-leaf parsley