Gral's Devotion

I believe the raw mat breakdown is roughly like:
2 Magma Thresher
4 Waterfowl Filet
3 Temporal Dragonhead
2 Cerulean Spinefish
4 Islefin Dorado
2 Aileron Seamoth
2 Thousandbite Piranha
6 Mighty Mammoth Ribs
5 Basilisk Eggs
8 Lava Beetle
3 Pastry Packets [vendor]
10 Thaldraszian Cocoa Powder [vendor]
8 Conveniently Packaged Ingredients [vendor]

I found myself bouncing around wowhead for most of this so here is the full list of mats and recipes needed in one place. (raw mats in alphabetical order for no reason whatsoever.... ^.^)

Raw Mats:

Aileron Seamoth x 1
Assorted Exotic Spices x 25
Basilisk Eggs  x 5
Cerulean Spinefish x 6
Conveniently Packaged Ingredients x 3
Islefin Dorado x 7
Magma Thresher  x 2
Mighty Mammoth Ribs x 6
Pastry Packets  x 3
Temporal Dragonhead x 10
Thaldraszian Cocoa Powder x 10
Thousandbite Piranha x 1
Waterfowl Filet x 16

Recipes:

Roast Duck Delight (4 needed for Gral's Devotion)
[item=198125]
Discovery: When Cooking Thrice-Spiced Mammoth Kabob

Sizzling Seafood Medley (6 needed for Gral's Devotion)
[spell=381398]
Discovery: When cooking Salt-Baked Fishcake or Timely Demise

Revenge, Served Cold (6 needed for Gral's Devotion)
Revenge, Served Cold
Discovery: When Cooking Seamoth Surprise or Filet of Fangs

Celebratory Cake (1 needed for Gral's Devotion)
[spell=381378]
Drop: After My Ohn Heart

Other Mats:

Magma Thresher (2 needed for Gral's Devotion)
Fished in Waking Shores once reaching renown 15 with the Iskaara Tuskarr and crafting a tracker - see more info here Magma Thresher#comments

Mighty Mammoth Ribs (6 needed for Gral's Devotion)
Drops from mammoths in the Azure Span - see more info here Mighty Mammoth Ribs#dropped-by

Handy guide for Dragonflight cooking here: https://www.wowhead.com/guide/professions/cooking/recipes-dragonflight

happy cooking!