Momofuku Compost Cookies

From Anne's Food

27 huge cookies 225 g unsalted butter, at room temperature 250 ml sugar 180 ml brown sugar 1 tbsp white baking syrup (or golden syrup, or corn syrup) 1 tsp vanilla extract 2 eggs 415 ml flour 2 tsp flaky sea salt 1 tsk baking soda 2 tsp baking powder 200 ml peanut butter chips (or chopped dark chocolate) 200 ml chocolate covered caramels (cut in half) 200 ml crushed salted potato chips 200 ml crushed pretzel sticks I'm using my Kitchen-Aid. I wouldn't attempt it by hand, but handheld beaters would work. Beat butter, sugar, brown sugar and syrup for three minutes until fluffy. Add vanilla and eggs and beat for ten minutes. It will be very thick, pale and fluffy. Mix flour, salt, baking soda and baking powder in a separate bowl, and add this to the cookie batter. Stir as little as possible to combine them. Add your candy and snacks to the batter and stir just to combine. Shape large balls - about the size of ping pong balls - and place on lined baking sheets, leaving a lot of room in between. I could fit nine cookies per sheet. Place in the fridge for at least one hour. Bake at 200°C for 9-10 minutes. This last step is hard but crucial: let them cool completely on the sheet before tasting. (Or they'll break up completely.)