This is a thorough and overly personal explanation of one of my favorite things to bake: rugelach. Rugelach are an Ashkenazi Jewish pastry consisting of dough rolled around a filling, usually in a crescent shape. The chocolate filling in this recipe creates moisture and density, and the dough is light but flavorful. All rugelach are kind of mediocre except for these. These are exceptional. Rugelach also conveniently merge my major interests: baking, obsessive TV-watching, and…