Chewy and Gooey Pistachio Friands

120g pistachios
200g icing sugar
200g butter, melted
5 egg whites
80g flour

Preheat oven to 180 deg C. Prepare 6 friand or cup cake tins by either greasing and flouring, or lining with patty cake liners.
Grind the pistachios in a food processor until very very fine. This will take 3-5 minutes.
Add icing sugar and continue to grind even more finely.
Add melted butter and process  to incorporate.
Whisk egg whites until they’re foamy.
Add the pistachio mixture.
Gently fold in flour. Be careful not to over mix the flour.
Pour into prepared moulds and bake for 30 mins.
These keep for a long time, but are at their best fresh out of the oven when the outside of the cakes is chewy. The inside will be more moist than normal friands. .