The Bittersweet Biscotti is a treat that you can make in Destiny 2’s Dawning 2020 event. You will be able to give it the Crow. The poor chap could probably use some cheering up, what with nobody really liking him very much.
To make this treat, you will need to get some Dark Ether Cane, and some Balanced Flavors. You can get Dark Ether Cane by killing Scorn enemies. To find Scorn, head to the Tangled Shore and you can try the Rift Generator event or the Bay of Drowned Wishes. Both of them will result in plenty of enemies for you to kill and lots of Dark Ether Cane.
To get Balanced Flavors, you will need to get kills with Sniper Rifles, Scout Rifles, or Bows. We would suggest Scout Rifles, just for the amount of ammo you will have.
Neither of them are guaranteed drops, so keep in mind that you may need to do a lot of killing to get your hands on them. When you have both recipes, combine them in Eva’s Oven, along with 15 Essence of Dawning, and you will end up with a Bittersweet Biscotti. Take it the Crow near the Spider’s lair on the Tangled Shore and give it to him.
You will get three Spirit of Dawning as a reward. If you need help finding other ingredients, we have a full guide that will help you out. We also have a guide for every Dawning 2020 recipe, which you should also find useful.