Currently there isn't a way other than writing them down, however they are apparently adding a Recipe Book in the coming Late Nov/Early Dec updates. It's also supposed to allow you to just click on said recipe and load up the ingredients like it does in a crafting leve assuming you have the requisite materials on hand.
Found the quote:
Q. What kind of changes are planned for synthesis?
A. The late-November patch will see adjustments to the required ranks and difficulty levels of various existing recipes, ensuring that players will have a better chance to successfully create items when reaching the optimal skill level.
For the mid-December update, we will be adding several new recipes, including ones for crafting new gear. In addition, we will be introducing a new feature that will allow players to select recipes from a list of recently crafted items and recipes learned through levequests, and set all of the appropriate ingredients with the touch of a single button, thus making repeated synthesis of a single item a snap!