#4. Choc hazelnut ice cream sandwich
Put a scoop of ice cream on 2 cookies, then top with 2 more cookies and squish down a bit so the ice cream reaches the edges. Put the hazelnuts on a plate. Roll the sides of each ice cream sandwich through the nuts, like a wheel, to create a nutty edge, then either pop in the freezer if you want to serve them later, or devour immediately.