Preheat the oven to 350°F/175°C.Line a baking sheet with baking paper.
In a bowl or on a work surface, knead the flour, confectioner's sugar and butter into a smooth dough.
Take a piece of parchment paper and place it on top of the dough. Roll out the dough using a rolling pin into a rectangle of roughly 8 x 12 inch (20 x 30 cm) 0.2 inch (0,5 cm)thick. Lightly whisk an egg and brush the dough with some of the egg.
Topping
Add the remaining egg and the ingredients for the topping (succade/candied peel, peanuts and confectioner's sugar) to a bowl and mix. Mix up everything thoroughly until all of the succade and peanuts are coated with the egg.
Spread the peanut mixture onto the dough. Place a piece of parchment paper on top of the peanuts and with a rolling pin gently roll the peanuts into the dough.
Cut out squares of the cookies with a knife. Transfer the cut cookies onto a baking sheet lined with parchment paper.
Bake in the oven for roughly 15 minutes till golden.
Notes
Please note that the cup measurements in this recipe are approximate. Cup measurements have been added for those that prefer using cups. The recipe is most accurate using weights measurements.
The Nutrition facts in this recipe are based on the ingredients and cooking instructions as described in the recipe and are based on statistical averages. The exact nutritional values may vary depending on the ingredients used etc.