Stef over at the cupcake project took my butter cracker recipe and ran with it. She tweaked and fiddled and came up with a recipe that I tried this morning. Yay! Good tasting crackers! I ground some kosher salt onto mine to go along with the salted butter they were brushed with while still hot from the oven.
I had the best luck with those that were rolled the thinnest but they were all good. Note that the empty mayo jar can be used for things other than sourdough starter.