01 -
Set your oven to 175°C. Bake the cookies for about 10 or 12 minutes til you see the edges set up nicely. Leave them on the baking tray for a bit, then shift them to a wire rack so they finish cooling off.
02 -
Drop scoops of both chocolate and vanilla dough all over a tray lined with parchment paper. Grab a toothpick or a skewer and swirl them together but don’t get carried away, just enough for that cool zebra pattern.
03 -
Toss the cocoa powder into your second bowl of dough and mix until it’s totally chocolatey.
04 -
Break the dough in half. Set one part aside—that’s your plain vanilla layer.
05 -
In another bowl, mix salt, baking powder, and flour with a whisk. Slowly pour these dry bits into your wet bowl and mix just enough until everything sticks together.
06 -
Crack in one egg, mix it up, then do the next. Pour in the vanilla and stir so it’s all blended.
07 -
Beat your soft butter and sugar together in a big bowl with a mixer til it’s fluffy and pale.