They were right. It IS easy. If you can roll out dough for sugar cookies, pie crust or cinnamon rolls, you can manage puff pastry. So here's the recipe I settled on, after a brief period of research and experimentation.
Homemade Puff Pastry
1 scant cup of flour (one cup minus 2 tablespoons)
¼ tsp. salt
1 stick of unsalted butter, chilled and chopped
¼ c. ice cold water
Give the dough a quarter turn, and repeat the same steps at least 3 more times (I’ve done it up to five times for extra flaky results). The dough will become increasingly smooth with each turn. Wrap the dough in plastic film and refrigerate for 30 minutes to an hour before using.
This makes roughly the equivalent of a single sheet of boxed puff pastry. A nice small batch for just a few treats! Start to finish, you can have this done in 15-20 minutes, plus chilling time. Less time than a trip to the store and much better.