In a glass, combine wine, Alchermes, and water and stir. Set aside.
In the bowl of the planetary mixer, pour flour, baking powder, sugar, and salt and mix with a spoon.
Add wine and Alchermes mixture, vanilla, and peanut butter (or butter).
Knead until smooth.
If you use peanut butter, the shortcrust pastry does not have to rest. Otherwise wrap in plastic wrap and refrigerate for 2 hours or overnight.
Preheat oven to 180C degrees (356F).
Roll out the dough to a height of about 3 mm and make circles 6 cm in diameter.
In the center of each circle, arrange 1/2 teaspoon cherry jam, then close the dough on itself, forming a half moon.
Use your fingers to press down on the edges to gently seal them.
Mix alchermes and water in a glass.
Brush the surface with the mixture, sprinkle with granulated sugar, and bake in a preheated oven for about 12 to 15 minutes or until the edges become lightly brown.
Remove from the oven and let cool.
Store in the cookie box for ten days.