Step 1

Arrange a rack in the middle of the oven and heat to 400°F. Line 2 baking sheets with parchment paper.

Step 2

Place the butter, garlic, parsley, cheese, and salt in a small bowl and mix to combine; set aside. In a separate small bowl, whisk together the egg and water; set aside.

Step 3

Unfold the puff pastry onto a lightly floured work surface. Spread the butter mixture evenly over the dough. Starting at a short side, roll up tightly like a jelly roll. Place the log in the freezer to chill for 10 minutes so that it's easier to slice.

Step 4

Using a sharp knife, cut the log crosswise into 1/2-inch-thick slices (about 20 slices). Place cut-side up on the baking sheets about 2 inches apart. Brush the tops with the egg wash.

Step 5

Bake until golden-brown, about 15 minutes. Remove from the oven and transfer the pinwheels to cooling racks to cool for 5 minutes before serving. Serve warm.