Just as no Christmas cookie collection is complete without at least one ginger spice cookie, there must also be at least one chocolate cookie in the mix. For this year’s Twelve Days of Christmas Cookies: Silver Bells collection, there are two chocolate cookies. They are similar in construction (at least for the shortbread component) but the spicing and shaping is different for each. For the Chocolate Toasted Coconut Bars, the shortbread dough is spread into a baking pan and the depth is close to ½-inch. For these cookies, you want to roll the dough very thinly and cut with a simple cookie cutter of your choice.