01 -
Heat your oven to 180°C/356°F and put parchment paper in a 9-inch square baking tin
02 -
Whisk the sugar and eggs together in a medium bowl until they're properly combined
03 -
Drizzle in the cooled melted butter while continuously mixing the egg mixture
04 -
Mix in flour until it's all combined; don't worry, the batter will get quite thick
05 -
Fold the white chocolate chips through until they're spread out evenly
06 -
Dump into your lined tin, flatten the top, add a pinch of sea salt if you want, and bake about 25 minutes until the edges firm up and top turns slightly golden
07 -
Let it cool all the way in the tin before you lift it out and slice into 9 squares