All my guests loved these. I used an aged manchengo. My hand mixer struggled with the initial beating of the butter and cheese. I will use my stand mixer next time. I mixed the flour in with a big spatula and the rice krispies in by hand. I baked them until they felt firm in the center, quite a bit longer than recommended in the recipe. They were not nearly as good the next day. I might try saving a few pieces of shaped dough in the freezer to bake later. Before I made them I was thinking about trying to freeze a log for slicing and baking later but I think the dough may be too crumbly to slice and trying to make it moister might result in soggy krispies.http://www.marthastewart.com/341241/manchego-crackers