01 -
Set the oven to 350 degrees Fahrenheit and allow it to reach temperature fully.
02 -
In a large bowl, cream together the softened butter and granulated sugar until light and fluffy. Add the egg and vanilla extract, mixing until smooth.
03 -
In a separate bowl, whisk together the all-purpose flour, baking powder, and salt until well dispersed.
04 -
Gradually add the dry ingredients into the wet mixture, folding gently with a spatula just until fully combined. Avoid overmixing.
05 -
Cover the mixing bowl with plastic wrap and refrigerate the dough for 1 to 2 hours to enhance flavor and ease shaping. This step is optional.
06 -
Portion dough into 1 1/2-inch balls. Using your thumb or the end of a rolling pin, press a deep indentation into the center of each ball without piercing through.
07 -
Press the tops of each dough ball into a bowl of white sugar sprinkles, then arrange spaced 2 inches apart on a lined baking sheet.
08 -
Carefully spoon strawberry jam into each indentation, avoiding overflow.
09 -
Transfer the baking sheet to the preheated oven and bake for 14 to 15 minutes, until the cookie edges are lightly golden.
10 -
Remove cookies from the oven and allow them to cool on the baking sheet for several minutes. Transfer to a wire rack to cool completely.
11 -
Arrange cooled cookies on a plate and serve as desired.