But the same day that I made the galette, I discovered Walmart selling red plums. Initially I was bummed that I hadn't thought to run there before making the Pear-Apple Galette. When I discovered the failure of the PA Galette, I decided that I could actually make the plum one after all. So the next day I went to Walmart to purchase plums and more puff pastry.
By this point I had seen the galette made by Lisa and made one myself, so it actually came together pretty quickly. And my mistake with the PA one was that I didn't make sure the edges were tight and the cookie sheet that I used to bake it didn't have edges all the way around, so that made a mess in the oven as it leaked juices. For the plum galette I made sure that the edges where tight and I used a different cookie sheet.