For this tasty pesto recipe, put a large handful each of watercress, spinach, parsley and basil or coriander into a food processor with the juice & zest of ½ lemon and 2 tbsp of extra virgin olive oil and a small garlic clove. Blend.

Try adding macadamia nuts, chilli and/or a teaspoon of tomato or tamarind paste to suit your preferences.