01 -
1 cup softened unsalted butter.
02 -
½ cup white sugar.
03 -
¼ cup packed brown sugar.
04 -
¼ teaspoon finely ground sea salt.
05 -
1 large egg.
06 -
2 ½ cups plain flour.
07 -
1 teaspoon baking powder.
08 -
2 teaspoons pure vanilla extract.
09 -
2 tablespoons Dutch cocoa powder.
10 -
½ cup white sugar for rolling.
11 -
½ cup smooth jam for centers.