Ingredients

For the onions:
3 tablespoons Butter
4 Medium onions, sliced
Salt and pepper
2 tablespoons Flour
1 bottle Dark beer, such as Guinness
1 tablespoon Worcestershire sauce
1 cup Beef stock
For the potatoes:
2 pounds Potatoes
Whole milk or half-n-half, for mashing
2 tablespoons Dijon mustard
Salt and pepper
Grated nutmeg
1 Small bundle farm spinach, stemmed and chopped
For the steak:
4 Flat-iron steaks or 2 pounds flank steaks
Salt and pepper
Oil, for drizzling

Description

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