Chocolate cake: where to get it

Source	Quantity	Chance per roll
19th Anniversary celebrations []	1	Common
20th Anniversary celebrations []	1	Common
21st Anniversary celebrations []	1	Common
22nd Anniversary celebrations []	1	Common
23rd Anniversary celebrations []	1	Common
24th Anniversary celebrations []	1	Common
25th Anniversary celebrations []	1	Common
Abyssal demon []	2	9/126
Ancient mage []	2	9/126
Ancient ranger []	2	9/126
Ancient warrior []	2	9/126
Automaton (Heart of Gielinor) []	2	9/124
Automaton champion []	2	9/121
Black dragon []	1	3/128
Black Knight []	2	9/126
Black Knight champion []	2	9/124
Blood reaver []	2	9/124
Bloodveld []	2	9/126
Butcher demon []	2	9/121
Champion of Infernus []	2	9/124
Chaos dwarf []	2	9/126
Christmas cracker []	1	16/128
Fallen champion []	2	9/124
Gourmet impling []	1	1/10
Gourmet impling jar []	1	1/10
Hellhound []	2	9/126
Kamil []	2	Always
Mighty Blood reaver []	2	9/121
Nechryael []	2	9/126
Necromancer []	2	9/126
Red dragon []	3	3/128
Seren archer []	2	9/126
Seren mage []	2	9/126
Seren warrior []	2	9/126
Shadow demon []	2	9/121
Skeleton []	2	9/126
Wight []	2	9/126
Wight ranger []	2	9/126
Wolf []	2	9/126
Zamorakian sniper []	2	9/126