Back to the grind: To make this burger, the meats, suet, and marrow must be ground. There are three different ways to do this.
1 Have the butcher grind the meats. Ask your butcher to cut all trimmed meats into 3/4-inch pieces, chop the suet and marrow, and grind everything into 1/16-inch pieces.
2 Use a meat grinder.
3 Use a food processor. Cut all trimmed meats into 1/4-inch pieces. Chop the suet and marrow. Freeze until partially frozen. Working in batches and using on/off turns, grind into 1/16-inch pieces.
Combine all ground meats, beef suet, and bone marrow in large bowl and mix lightly with fork. Add miso mixture and stir lightly just to incorporate (do not overmix). Divide meat mixture into 8 equal portions. Form each portion into scant 4-inch-diameter patty. Sprinkle both sides of patties generously with salt and pepper.
Brush 2 large skillets with oil; heat over medium-high heat. Add 4 burgers to each skillet; cook 3 minutes. Turn burgers over. Cook 2 minutes; top with cheese and cook 30 seconds to 1 minute longer for medium-rare. Remove from heat.
Place 1 bun bottom on each of 8 plates. Top each with 1 burger, 1 tomato slice, 1 red onion slice, watercress, and Red Vinegar Pickles. Spread bun tops generously with Spiced Ketchup and place atop burgers.

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Nutrition Facts

Per Serving Per 100 g

Amount Per 1 Serving
Calories	685.49 Kcal (2870 kJ)
Calories from fat	465.89 Kcal
		% Daily Value*
Total Fat	51.77g	80%
Cholesterol	138.19mg	46%
Sodium	1265.69mg	53%
Potassium	656.25mg	14%
Total Carbs	6.73g	2%
Sugars	2.85g	11%
Dietary Fiber	1.46g	6%
Protein	47.39g	95%
Vitamin C	25.6mg	43%
Iron	2.3mg	13%
Calcium	26.6mg	3%

Amount Per 100 g
Calories	144.8 Kcal (606 kJ)
Calories from fat	98.41 Kcal
		% Daily Value*
Total Fat	10.93g	80%
Cholesterol	29.19mg	46%
Sodium	267.36mg	53%
Potassium	138.62mg	14%
Total Carbs	1.42g	2%
Sugars	0.6g	11%
Dietary Fiber	0.31g	6%
Protein	10.01g	95%
Vitamin C	5.4mg	43%
Iron	0.5mg	13%
Calcium	5.6mg	3%

* Percent Daily Values are based on a 2000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Find out how many calories should you eat.

Tastes

salty
savory
bitter
sweet

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