It’s more common than you might think. 😉

Blood As A Culinary Ingredient:
Brad Farmerie : Blood Work
Nordic Food Lab : Blood And Egg
The Nordic Food Lab’s Innovative Approaches To A Neglected Ingredient
Cooking With Blood: Yesterday And Today
How to Eat Blood for Breakfast
How And Why You Should Be Making Blood Sausage At Home
Blood, Bone and Gore: Why Aren’t We Eating It?
Why Chefs Are (Finally) Cooking With Blood
You Eat Meat, So Why Not Blood?
Cooking With Blood Convinced Me to Stop Being A Vegetarian
You Should Be Cooking with Blood
Why I’m Putting Blood In My Bread And Ice Cream

Research Articles:
Slaughterhouse Blood : An Emerging Source of Bioactive Compounds
The Use Of Blood And Derived Products As Food Additives
Blood-derived Products For Human Consumption

Books:
The Dracula Cookbook of Blood
Odd Bits: How to Cook the Rest of the Animal

General:
Cooking With Blood (Recipes)
Variations Of Blood Sausage
What Exactly Is Blood Sausage, Anyway?
Blood Sausages
Black Pudding : Rediscovering Our Taste For Blood
How To Prepare And Cook A Pig (Recipes)

Asia:
Street Food in Taiwan : Pig’s Blood Cake
Blood / Black Tofu
Nasty Bits : Shanghainese Chicken & Duck Blood Soup
Nasty Bits : Korean Blood Sausage
The lifeblood of sausages, hotpots and soups
Korean Sundae
Korean Blood Sausage : Sundae (순대)
Soondae Korean Blood Sausage (Recipe)
Laotian Raw Duck Blood Salad
Raw Pig’s Blood Soup : Lou (หลู้) (Vague Recipe)
Thai Boat Noodles (Recipe)
Saveur : Thai Boat Noodle Soup (Recipe)
Northern Thai Steamed Rice with Pork Blood ข้าวกั๊นจิ๊น (Recipe)
Dinuguan Sausage : Smoked Pork Blood Sausage (Recipe)
D is for Dinuguan (Recipe)
Pork Dinuguan, Ilokano Style (Recipe)
Crispy Dinuguan (Recipe)
Vietnamese Blood Sausage Doi Huyet (Recipe)
Pig Blood Noodles With Smoked Stock And Dehydrated Kimchi (Recipe)
Tibetan Tra-gyuma (Recipe)
Mao Xue Wang (Duck Blood Curd 毛血旺)
Gyuma : Atlas Obscura
Fighting Gentrification With Blood Sausage In Toronto’s ‘Little Tibet’

UK:
Blood Sauce With Quick Pasteurization Via Sous Vide (Recipe)
Irish Black Pudding (Recipe)
Scottish Black Pudding
Blood Custard Tastes Better Than It Sounds
Black Pudding : A Bloody Debate
A Guide To Traditional Black Pudding
Blood For Breakfast? Fear Not!
Fergus Henderson’s Blood Cake / Black Pudding (Recipe)
All You Need To Know About Black Pudding (Recipes)

Europe:
Swedish Pig’s Blood Rye Bread (Recipe)
Gluten Free Blood Pancakes (Recipe)
Finnish Blood Pancakes (Recipe)
Veriletut : Finnish blood pancakes (Recipe)
Estonian Verivorst Ve Verikäkk (Recipe)
Estonian Blood Sausages : Verivorstid (Recipe)
Black Pudding The Nordic Way (Recipe)
Oeufs Sanguinette (Recipe)
Blood Sausage : Sanguinaccio (Recipe)
Biroldo : Sanguinaccio (Recipe)
Portuguese Blood Sausage (Recipe)
Morcilla (Recipe)
Nasty Bits : Morcilla, or Spanish Blood Sausage
Morcilla : A Bloody Good Sausage
Morcilla de Burgos (Recipe)
Introduction to Morcilla
Borono (Recipe)
Polish Blood Sausage (Recipe)
Polish Blood Sausage (Kiszka) (Recipe)
Making Kiszka : Polish Blood Sausage
Boudin Noir (Recipe)
Cooking with Blood : Boudin Noir and Czarnina (Recipe)
Sângerete (Recipe)
Sângerete De Casa (Recipe)
Thüringer Rotwurst
Thüringer Rotwurst (Recipe)
German Blood Sausage Blutwurst (Recipe)
Blut-Zungenwurst
Bavarian Sulze and Blut-Zungenwurst (Recipe)
Schwarzpudding Blodpudding (Recipe)
Verileipä (Recipe)
Verileipä (Recipe)
Country Style Pork Blood Terrine (Recipe)
Blood Pasta With Blood Sausage Bolognese (Recipe)
Blutnudeln or Italian Pork Blood Pasta (Recipe)

Africa:
Mutura Is a Blood-Soaked Kenyan Delicacy

USA:
Blood Collection the Cajun Way (Cajun Boudin Noir)

Mexico & South America:
Moronga
Ñachi : This Chilean Dish Turns Fresh Blood Into Savory Jelly

Micronesia, West Indies:
Guamanian Fritada
West Indian Pudding : Boudin Antillais (Recipe)
West Indian Boudin Antillais (Recipe)

Sweets:
Mazamorra de Sangrecita
How Russia Fell in Love With Candy Bars Made of Blood
Blood Ice Cream (Recipe)
Blood & Chocolate Panna Cotta (Recipe)
Hot Blood Pudding Custard (Recipe)
Sanguinaccio Dolce : Blood & Chocolate (Recipe)
Sanguinaccio Dolce : Atlas Obscura
Sanguinaccio Dolce : A ‘Bloody’ Good Desert! (Recipe)