1 always use a spotless clean bowl
2 use half a lemon to rub around the bowl then dry off
3 always ensure the bowl and whisk are completely dry
4 add cider vinegar for chewiness
5 add cornstarch for a crispy outer layer
6 add sugar slowly whisking all the time
7 all ingredients should be room temperature especially the eggs
8 line our trays with parchment paper not wax paper
9 use a little meringue to glue the parchment paper down