Preheat the oven on the hot air program at 160 degrees Celsius.
Chop 100 grams of the peanuts.
Mix the butter and sugar with a fork.
Add the vanilla sugar and the egg and continue mixing with the fork.
Add the peanut butter and mix.
Add the flour, baking powder and salt, mix it all well to a cookie dough.
Place baking paper on baking sheet.
Use a spoon to scoop up some dough and roll a ball and place on the baking paper.
Flatten the dough slightly.
Place some peanuts on the cookie and press it slightly with the hand. Continue with the rest of the dough.
Place in the middle of the oven for 10 minutes.
Take out and let it cool down.