Okay, so we have birch candy.
But is that really enough? What if candy actually became ingredients for things, like ice cream, even?
Some candy ideas:
Peppermint
Chocolate (Chocolate? Did you say chocolate? ...CHOCOLAAAAATE! CHOCOLAAAAAAAAAAAAAATE!)
Vanilla
Silver sugar (Could be extracted from Silvertongue and could be used for sweet things- this would probably be a basic ingredient for candy.)
Caramel (Could probably be made by using an awesome pot to cook sugar with milk or something like that)
Bubble Gum (This would introduce harvesting sap from trees. Sap trees? Or maybe all trees have sap, but with different variants... and wood trees likely barely yield any, while they're most abundant in bubble trees.)