Preheat the oven to 400°F. Take the wrapped puff pastry out of the refrigerator a few minutes before you want to roll it out.
Roll out the pastry into a rectangle about 7 to 8 inches on the short side and ⅛ inch thick.
1 pound (453 grams) puff pastry dough
Use a pastry brush to brush the rectangle thickly but evenly with melted butter.
1 stick (8 tablespoons or 4 ounces or 113 grams) butter, melted
Combine the sugar, cinnamon, and salt and sprinkle it evenly over the rectangle. Use your hands to pat it gently into the butter.
½ cup (3.5 ounces or 100 grams) granulated sugar, 1 tablespoon cinnamon, pinch salt
Slice the rectangle into about ¾ inch strips that will be 7 to 8 inches long.
Holding one end steady, twist the other end of the pastry as tightly as you can, and press the ends of the puff pastry twist down onto a baking sheet lined with parchment or a silicone mat. This will help prevent the cinnamon twist from unwinding while baking.
Put the baking sheet into the freezer for about 30 minutes prior to baking. This will again help to prevent the twists from unraveling.
Bake for about 20 minutes, until your puff pastry twists are crisp and slightly browned.
Let your cinnamon puff pastry twists cool on the baking sheet. These cinnamon twists can be stored in an air tight container at room temperature for about one week.