Using a cookie cutter, cut hearts from the puff pastry (two hearts will make one heart puff)
On one heart, unwrap and place a Hershey Kiss
Next, place another heart on top of the kiss and "seal" them together by lightly pressing a fork along the edges
Brush the top of the heart with melted butter
Place on a cookie sheet lined with parchment paper or baking mat
Bake 400 degrees for 15 minutes or until hearts are puffy and golden brown
Notes
You can make these chocolate pastry hearts vegan! Simple make sure to use a dark chocolate/plant based chocolate in the center and use melted plant based butter to seal the hearts.