Preheat oven to 350º F and line two baking sheets with parchment paper.

In a bowl, mix together the flour, baking powder and salt. Set aside.

In the bowl of a KitchenAid mixer beat together the softened butter and the sugar until fluffy.

Beat in the egg and the vanilla extract.

Add in the flour mixture in batches.

Using a small cookie scoop, form 1 inch balls. Then roll the cookie balls in the extra sugar.

Place about 2 inches apart on the prepared baking tray.

Using you thumb or the back of a melon scoop, press into each cookie ball about ½ inch deep.

Fill the wells with a small spoonful of jam.

Bake the cookies in the preheated oven for 12 to 15 minutes or until the edges are golden brown.

Cool on baking sheets before serving.