Method
Prep:5min  ›  Cook:15min  ›  Extra time:30min  ›  Ready in:50min 

1. In the food processor, combine peanuts and biscuits, and pulse until mixture is well combined and resembles breadcrumbs. Add the sugar and pulse. Add the condensed milk and process until it forms a ball that pulls away from the sides of the processor. Transfer it to a 23cm / 9 in square baking dish lined with greaseproof or parchment. Using your hands, press well to form an even layer. Let it rest for at least 15 minutes, up to overnight. Remove from the baking dish and cut into squares. Keep it in airtight containers.