Preaheat oven to 350F
In the mixing bowl add softened unsalted butter and beat using a stand mixer or hand mixer.
Add sifted powdered sugar and beat again.
Add eggs, one at the time and beat again until fluffy and creamy.
Mix in sifted all-purpose flour.
Transfer batter into pipping bag with open star pipping tip Wilton 4B.
Pipe flowers looking cookies into baking sheet lined with baking mat or parchment paper.
Using your thumb or the back of a teaspoon, press into the center of each cookie.
Fill cookies with jam.
Bake cookies at 350F for 15-20 minutes or until they turn golden brown.
Transfer to cooling rack and let cool to room temperature.