From the English Breakfast Society:

• 4 Pounds Of Lean Shoulder Pork
• 1 Pound Of Pork Fat
• 3 Teaspoons of Salt
• 2 Teaspoons Of White Pepper
• ½ Teaspoon Of Mace
• ½ Teaspoon Of Nutmeg
• 1 Teaspoon Of Sage
• 1 Teaspoon Of Onion Powder
• 2 Teaspoons Of Thyme
• 1 Teaspoons Of Ginger
• 2 Cups Of Breadcrumbs
• Hog Casings

*We omit the breadcrumbs, and hog casings an just make patties.

Ref: http://www.englishbreakfastsociety.com/bangers-sausage-recipe.html