Preheat the oven to 180 ° C. Line 2 large baking sheets with parchment paper.
In a mixing bowl, beat the butter and sugar until frothy. Stir in the egg and flour, then fold in the pear pieces.
With a spoon, distribute 12-14 evenly-sized piles of the mixture on the baking sheets at a distance of 5-8 cm and smooth out with the underside of the spoon.
Bake for 12-14 minutes until golden, then let cool down completely on a wire rack.
Store in an airtight container.
I also tested the following variations: (all sensationally delicious !!!)