For tinted sugar, place 1/2 cup sugar into a baggie and add 3 - 5 drops of the desired color. Mix, shake, and massage sugar for even saturation. Let colored sugar dry overnight on a paper towel.
To make Palimers, preheat oven to 450°F and line cookie sheet with parchment paper.
Sprinkle work area with 1/2 cup sugar and lay puff pastry over top. Cover with the remaining 1/2 cup tinted sugar. Roll puff pastry out to a 12-inch rectangle, pressing sugar into the dough.
Carefully roll the short ends toward the center. (The dough should look like a butterfly.) Cut 1-inch slices off of the roll and place on a prepared cookie sheet.
Bake for 6 minutes, then reduce the temperature to 400°F and flip cookies over. Continue to bake for another 5 to 6 minutes, watching them carefully so they do not burn.
Remove from oven and transfer to a wire cooling rack.
The sugar will be HOT, so be careful when handling right out of the oven.
Store in an airtight container away from humidity.