Instead of using rolls of puff pastry from a bakery, you can use blocks of puff pastry sold in grocery stores. In this case, you will need 2 packages (397 g each) containing 2 blocks of pastry each (for a total of 4 blocks of pastry). To get two circles of pastry large enough for this recipe, glue two blocks of pastry together by brushing them first with water and then rolling them out on a floured surface until ¼ inch (5 mm) thick (as indicated in step 3).
Although these store-bought blocks of puff pastry weigh less than what is indicated in the recipe, the difference is negligible and will still produce a great galette des Rois.
