Strange Cookies are another of the Dawning 2020 recipes in Destiny 2. You can take these to a certain NPC and claim special rewards. You will need to take these to Xur once the weekly reset happens tomorrow. Keep in mind that Xur is only around until the following Tuesday, and to get the most out of rewards, you will need to get to him as quickly as possible.
To make Strange Cookies you will need Taken Butter and Electric Flavor. The Electric Flavor is the hardest one to get, as you need to use the Arc subclass. You will need to take out any enemies with Arc attacks, there are multiple places to try this out to farm the ingredients. The best option to get it is to take your Arc subclass, which means you need Arc abilities, to either the Blind Well or Altar of Sorrows. You can get both of the ingredients from this area, and then take them to the Oven. Once you have the Strange Cookies baked, take them to Xur when he turns up.
The Lake of Shadows Strike can spawn Taken, it’s on the EDZ for the uninitiated, once there focus on taking out the Fallen to get the Taken Butter as well. This is also a good time to farm for the Electric Flavor. Get through a few runs and you should have what you need, provided you bring along those Arc weapons.
The Hallowed Grove Lost Sector is another option for Taken Butter, and if you bring Arc weapons, you can farm for both ingredients for the Strange Cookies here as well. Shattered Throne is a different option. Farming the Thrall checkpoints can yield tons of different resources as well. And not just Taken Butter. You can also get drops for Delicious Explosion, Impossible Heat and more. If you want to focus on getting just the Butter and other drops, bring a Warlock with Devour. This can chew through enemies in this area and generate tons of kills, and Devour kills count as melee.
You will get three Spirit of Dawning as a reward for turning in the Strange Cookies for Xur. You can then use this to make other rewards during the Dawning 2020 event. If you need a more thorough guide on the various ingredients and all the Dawning 2020 Recipes, we have that on hand for you. So check that out if you want.