1 sheet ready-rolled puff pastry measuring 20-30cm in length
1 portion chermoula (if you have time to make) or a jar of shop-bought pesto
8 marinated anchovies, cut in half lengthways
2 tbsp capers
2 tbsp black olives
200g mozzarella cheese
2 tbsp olive oil
1 egg, beaten
a small handful of basil leaves