Step 1

Put the cornstarch, salt, flour, sugar and cocoa powder into a bowl and stir.

Step 2

Add in the melted butter and continue to mix it until you get a crumbly dough.

Step 3

Sprinkle them onto a baking tray in chunks and bake them for 20 minutes.

Step 4

When you first get them out of the oven they will be quite soft, but they will crisp up as they cool.

Step 5

Once they are firm tip half of them into an airtight container for later, and pour the other half into a bowl of melted chocolate. The chocolate doesn’t need to be tempered. Stir around until they are well coated. Spread them out on some baking paper and refrigerate until set.