Buttered

Breadcrumbs3 slices of sourdough bread, toasted About 1 tablespoon of salted butter Cookie Dough50 grams unsalted butter, cold and cubed (~ 3 tablespoons)80 grams unsalted butter, browned (~6 tablespoons)1 1/2 teaspoons white miso paste  165 grams granulated sugar (~3/4 cup)60 grams muscavado or dark brown sugar (1/4 cup + 1 tablespoon)1 large egg plus 1 egg yolk1 teaspoon vanilla1 tablespoon…