Treat House

The homemade slabs of marshmallow-laced crispy rice treats two young brothers hawked at a charity bake sale elicited such nostalgia-inducing raves, it led their entrepreneurial parents to spawn a dessert den devoted entirely to the gooey snack. Jennifer and Chris Russell, former owners of the now-shuttered Moomba and TanDa restaurants, partnered with their erstwhile pastry chef, Wendy Israel, to open Treat House on the Upper West Side. Here, tykes and adults alike are enchanted by the urban tree-house setting, perching on tree stump stools to bite into the sweet, toothsome squares ($2.25 each) swirled with gourmet flavors like cool chocolate-mint, S’mores and sea salt-flecked caramel. Early risers can settle in for a less-indulgent breakfast of Stumptown coffee and brown rice bars studded with oats and flax.