Adds the narsour

code/modules/food_and_drinks/recipes/drinks_recipes.dm

@@ -547,4 +547,12 @@
 	name = "eggnog"
 	id = "eggnog"
 	results = list("eggnog" = 15)
-	required_reagents = list("rum" = 5, "cream" = 5, "eggyolk" = 5)
+	required_reagents = list("rum" = 5, "cream" = 5, "eggyolk" = 5)
+
+/datum/chemical_reaction/narsour
+	name = "Nar'sour"
+	id = "narsour"
+	results = list("hearty_punch" = 1)  //Very little, for balance reasons
+	required_reagents = list("blood" = 1, "lemonjuice" = 1, "demonsblood" = 1)
+	mix_message = "The mixture develops a sinister glow."
+	mix_sound = 'sound/effects/singlebeat.ogg'

code/modules/reagents/chemistry/reagents/alcohol_reagents.dm

@@ -1281,3 +1281,19 @@ All effects don't start immediately, but rather get worse over time; the rate is
 	glass_icon_state = "glass_yellow"
 	glass_name = "eggnog"
 	glass_desc = "For enjoying the most wonderful time of the year."
+
+
+/datum/reagent/consumable/ethanol/narsour
+	name = "Nar'Sour"
+	id = "narsour"
+	description = "Side effects include self-mutilation and hoarding plasteel."
+	color = RUNE_COLOR_DARKRED
+	boozepwr = 10
+	taste_description = "bloody"
+	glass_icon_state = "narsour"
+	glass_name = "Nar'Sour"
+	glass_desc = "A new hit cocktail inspired by THE ARM Breweries will have you shouting Fuu ma'jin in no time!"
+
+/datum/reagent/consumable/ethanol/narsour/on_mob_life(mob/living/M)
+	M.cultslurring += 3
+	..()