220驳/陆濒产 plain flour
1 tsp baking powder
1-2 handfuls crystallised ginger
1-2 handfuls nuts (such as peanuts, macadamia nuts, or brazil nuts) (optional)
pinch salt
150g/5oz golden granulated sugar
2-3 drops vanilla extract
1-2 handfuls chocolate chips (optional)
250g/9oz unsalted butter, softened
1 free-range egg, beaten