Add the butter and sugar to a bowl and cream together (see notes about rubbing ingredients together instead)
Add the plain flour, cornflour, and vanilla and beat to a dough. Sometimes it can be slightly crumbly, so you just need to knead it with your hands to bring it together
Add in the chocolate buttons and knead/mix through
Tip the dough onto a lightly floured surface and roll out to 1-1.5cm in depth
Cut cookies out using a 7.5cm cutter, and place onto lined trays. I do 6 per tray as they are quite large
Chill the cut cookies in the fridge for 30 minutes, and preheat the oven to 180ºc/160ºc fan
Sprinkle over some extra sugar and then bake the cookies in the oven for 20-25 minutes, or until golden
I make 12-13 cookies using the 7.5cm cutter, you can make more or less with different sized and shaped cutters so keep an eye on the biscuits whilst baking
You can use golden caster sugar instead of white caster sugar
You can substitute the cornflour for rice flour
You can use any flavour chocolate button/chip
These will last 5-7 days once baked, or freeze for 3+ months