Preheat your oven to 160°C (325°F) / 140°C Fan / Gas Mark 3. 2.
Spread the flaked almonds evenly on a baking tray. Toast for 15–20 minutes, turning halfway through, until they are fragrant and golden brown. 3.
In a food processor or high-speed blender, combine the toasted almonds, sunflower oil, and sea salt. Blitz until a smooth, nutty paste forms. 4.
Add the fresh mint leaves and sifted icing sugar to the processor. Blitz again until the mixture is smooth and vibrant green. 5.
Transfer the drizzle to an airtight container. It can be kept in the fridge for up to one week.