Ingredients All-purpose flour - 1 cup Baking powder - 1/4 teaspoon Salt - 2 pinches Butter room temperature - 1/2 cup (1 strick) sugar - 1/4 cup vanilla extract - 1/2 teaspoon,, Any Jam - 1/4 cup (I used pineapple jam) Preparation Preheat the oven to 350-degree fahrenheit In a medium bowl, whisk together the flour, baking powder, and salt. In a large bowl, using an electric beater, beat the butter and sugar on medium speed until fluffy and pale, about 3 minutes. Add the vanilla extract and beat on medium speed until combined. Turn off the mixer and scrape down the bowl with a spatula. Add half of the flour mixture and mix on low speed just until blender Add the rest of the flour mixture and mix just until blended. Scrape down the bowl. Scoop up a rounded tablespoonful of dough, then use your finger to push the dough onto the prepared cookie sheet. Dip your thumb in a little flour and use it to make a dent in each ball of dough Spoon a small amount of jam into each dent. Bak...