Photo courtesy Cornell University
While maple syrup rules on many breakfast tables, walnut syrup or birch syrup may be an alternative. It is not common knowledge that syrup is tapped from walnut trees or birch trees. So, currently, the market is small.
Birch syrup has an intense fruity molasses flavor. It takes about 150-200 gallons of birch sap to equal one gallon syrup. It is quite expensive at $350-$400 per gallon due to the expensive and time-consuming process. Walnut syrup has a nutty butterscotch flavor and is much like a light maple syrup.
Source: http://news.cornell.edu/stories/2013/02/researchers-tap-potential-walnut-and-birch-trees
