Meanwhile, line a small plate with parchment or wax paper. Coat the paper with cooking spray. Combine walnuts, the remaining 1 tablespoon syrup, cinnamon and nutmeg in a small saucepan or skillet. Heat over medium-low heat, stirring, until most of the syrup has evaporated, 1 to 4 minutes. Spread the nuts out onto the prepared paper and place in the freezer until cool, about 10 minutes.