The texture, the umami, and the natural beauty of this mushroom galette combine into a rustically elegant foraged feast. The pastry is a simple recipe, but like all pastry, needs a bit of attention. Make certain the flour, water, and butter are as cold as possible—try to avoid touching and working the dough too much, and do allow the dough to rest before rolling it out. If you are disciplined, this buttery, free form crispy crust will melt in your mouth and commingle like old friends into the rich and satisfying meaty taste of the seared mushrooms. When choosing mushrooms, note that the more varieties, the more interesting and earthy tasting the finished pie will be (albeit, one variety is just fine, too). A sprinkling of fresh herbs over the top of the fresh-from-the-oven galette will create a pleasant, welcoming, made in advance weeknight dinner.