Tamar Valley Certified Organic Walnuts feature in this week's hilbarn boxes, harvested recently and sun-dried by Lucy and Chris on their large walnut orchard on the Tamar River at Rowella. Lucy says they grow mostly Chandler (an English variety), with Frankette as pollinators (they're the pointy ones that are hard to crack). One of Lucy's favourite recipes is Walnut Pesto. Simply use walnuts instead of pine nuts. Make it without the cheese, says Lucy, and it will keep in the fridge for months - as long as you make sure there's a thin layer of olive oil on the top. And over winter, use parsley instead of basil. Walnut pesto is great for pasta, sandwiches or on biscuits with cheese.