David Moore '10 of The Crooked Chimney sugarhouse in Lee, N.H., the only known commercial producer of birch syrup, got his start during his senior project at UNH when he was testing sugar content in birch trees. Turns out New Hampshire's state tree, the white birch, has a higher content than other varieties, but the tangy, fruity flavor is better suited to marinades than pancackes. Used by some high-end chefs, birch syrup can be had for $25 for 8 oz.—or $300 per gallon.