"Cookies made in a muffin pan are the answer to your prayers if you've ever had a problem with cookies spreading while baking. There's no where for these thick and dense cookies to go. Between the nuttiness and richness imparted from the browned butter, and the brown sugar used in the dough, these cookies have great depth of flavor. They’re the perfect balance of chewy edges, squishy in the middle, and loaded with melted chocolate...."