8 slices bacon
1 cup sour cream
1/4 cup chopped mixed fresh herbs, such as parsley, chives and dill
2 to 3 tablespoons freshly grated or prepared horseradish (preferably Gold’s)
1 clove garlic, grated
Juice of 1/2 lemon
Salt and coarsely ground black pepper
Tabasco sauce, to taste
1 1/2 pounds flank or flatiron steaks, at room temperature
1 tablespoon Worcestershire sauce
EVOO – Extra Virgin Olive Oil, for drizzling
Watercress or upland cress
Thinly sliced red onion
4 pieces baguette, 8- to 10-inches each, split lengthwise
Preheat oven to 375°F. Arrange the bacon on a broiler pan or parchment-lined baking sheet and bake until crisp, 15-18 minutes.
In a medium bowl, mix the sour cream, herbs, horseradish and garlic. Add the lemon juice and season with salt and pepper. Mix in Tabasco sauce to taste.
Heat an outdoor grill or cast-iron skillet over medium-high. Season the steak with Worcestershire, salt and pepper; drizzle with EVOO. Cook to desired doneness, about 6 minutes per side for medium-rare. Let rest for 10 minutes then thinly slice against the grain.
Divide the baguette bottoms among plates. Top with some sliced steak, bacon, watercress, tomato and onion. Finish subs with the baguette tops slathered with the horseradish sauce.