Preheat oven to 400 degrees F. Spray a 12-cup muffin tin with cooking spray and set aside.
In a medium bowl, use an electric mixer to blend together all of the cream cheese filling ingredients until smooth and fluffy.
On a lightly floured surface, unfold one puff pastry sheet. Roll out to an even thickness and then spread half of the cream cheese mixture across the entire sheet. Sprinkle with raisins, if desired.
Roll up the pastry like a jelly roll around the filling, finishing the roll seam-side down. Trim off the uneven ends and then slice the roll into 6 equal pieces. Place each piece into a muffin cup.
Repeat process with the second sheet of puff pastry.
Bake for 17-25 minutes, or until golden brown and firm. Remove from oven and take buns out of the muffin cups.
In a small bowl, whisk together the glaze ingredients until smooth. While the buns are still warm, pour glaze over top. Serve warm, or allow to cool completely before wrapping.