Online:Ache for Cake

Quick Walkthrough
# Read the Jubilee Cake Voucher or accept the quest via the Crown Store.
# Talk to Chef Donolon at Vulkhel Docks, Daggerfall Harbor District, or the Davon's Watch Dockyards.
# Gather bananas, flour and honey for the cake.
# Return to Chef Donolon and wait for your cake.
# Talk to Chef Donolon again to claim your reward.

Detailed Walkthrough
To start this quest, you will need to accept it via the Crown Store or find the Stack of Jubilee Cake Vouchers near the Jubilee Bakery Barge. For versions of this quest given between 2016 and 2019, you first need to acquire the free   from the Crown Store. Read the voucher, found in your inventory in the Consumables section (on PC) or the Supplies section (on console), to start the quest:
:"This voucher provides the bearer with one cake for special occasions from the renowned baker, Chef Donolon."
: 
:''"To redeem this voucher and receive your special cake, look for the chef and his bakery barge in the ports of Vulkhel Guard, Davon's Watch, and the Harbor District of Daggerfall. We guarantee it will be delicious!"''

Head to the Docks in Vulkhel Guard, the Dockyards of Davon's Watch, or the northern Harbor District of Daggerfall. There you will find Chef Donolon and his Jubilee Bakery Barge. Note that you can visit any of the locations, and do not have to go to your home alliance. Donolon's dialogue will alter slightly depending on the zone you are in.

Once you have spoken to Donolon, you need to gather the ingredients for the cake. These are readily available near Chef Donolon in Honey Barrels, Flour Sacks, and a tray containing bananas, or you could head into the city and purchase them from a Grocer. Once you have them all, return to Donolon.

While you are waiting for your cake, you could take the opportunity to read Donolon Bakes, located on top of a nearby barrel. Once Donolon is finished baking, speak to him again.

Reward
You now have the  , which will grant a 100% boost to XP for two hours every time you activate the cake for the duration of the 2020 Anniversary Event. You have to first activate it from your Collections, which places the cake in the game world next to you. Then you activate this cake to eat it and thus earn your timed bonus.

For the 2017 Annual Anniversary, you will receive a different albeit similar memento, the  .

For the 2018 Anniversary, the cake has received another layer:  .

For the 2019 Anniversary, the cake was an iced fruit cake, decorated with blue roses and an ESO logo cake topper:   .

For the 2020 Anniversary, the cake was a three-tiered red velvet cake, decorated with berries and dark chocolate icing:  .

Cake Gallery
 

Notes
The cake can be shared with others in your group if they don't have their own.
The XP buff stacks (additively) with the following XP buffs: Alliance War Keep bonues;   OR Psijic Ambrosia (or 100% and 150% alternatives); ESO Plus; Grouping buff; Rings of Mara; Exploration Trait.
In 2016, there was initially a bug that prevented the cake from stacking with other buffs, as XP bonus was capped at 100%. A fix was released shortly after, and the event was extended from April 10 to April 12 as an apology.
The buff cannot be reapplied in Cyrodiil.
After the event ends, Chef Donolon is removed from the dockyards but his supplies and boat remain. The Donolon Bakes book was moved from the docks to the respective cities' local inns.  The cake mementos remain usable by those who earned them, but they lose its golden glow and no longer apply the buff.

Bugs
 
 
 

Quest Stages