In Cobble Hill, the whoopie pies made by One Girl Cookies is a fine example of a whoopie pie done right. Soft cookie-cakes in flavors of pumpkin and chocolate, with a nicely proportioned fill of cream cheese frosting. In the West Village, Milk & Cookies is an example of a whoopie pie ($3.50) gone horribly wrong. Here the cookies are not cookie-cakes, but overblown chocolate cookies, hard and crunchy. Crunchy in a way that indicates they've been sitting out a bit too long. The cream cheese frosting: gloopy, sugary and dried out at the edges. Combined, they make a horrific pair. Stick to the cookies (the mint chocolate chip is a particular winner), but avoid the whoopie pie at all means.