step 1:
preheat the oven at 190°C (375°F). Mix the melted butter with the powdered sugar and vanilla sugar in a bowl.
step 2:
add the egg, flour, and chocolate chips. now mix very well!! it shouldn't be heterogenous. hehe
step 5:
enjoy your cookies once they cooled down a little. note: shushu likes cookies better when you add 60 grams (half a cup) of powdered chestnuts in the dough.
step 3:
make little balls from the dough and place them on some parchment paper. don't forget to add a little bit of flour on it so they don't stick! you can mold the cookies with your hands or a tablespoon.
step 4:
let them bake for 8 minutes. catguy 1's tip: you can put your oven on 'grill mode' for a minute or two to make the cookies crunchy.