The Roast Beast Master with Crispy Onions and Creamy Horseradish Sauce

There's a good chance I made this sandwich just because it's called The Roast Beast Master (come on, that's pretty hard to resist). It feels powerful (and I guess with fried onions and horseradish sauce, it is). It's definitely satisfying, but not exactly an everyday sandwich, since it requires deep frying the onions. But I think they're a huge part of the appeal since you get to eat the extras on the side.

 

THE ROAST BEAST MASTER WITH CRISPY ONIONS

AND CREAMY HORSERADISH SAUCE

Yield: 4 servings

Creamy Horseradish Sauce:

1/2 cup mayonnaise

1/2 cup sour cream

1/4 cup prepared horseradish

2 teaspoons honey

2 teaspoons Dijon mustard

salt and freshly cracked black pepper

Crispy Onions:

2 cups buttermilk

2 onions, thinly sliced root to tip

vegetable oil, for frying

2 cups all-purpose flour

1 1/2 teaspoons cayenne

2 teaspoons paprika

salt and freshly ground black pepper

Sandwich Build:

4 large fresh onion rolls, buttered and toasted until golden

4 thick slices sharp cheddar

1 pound good-quality rare roast beef, sliced thin

1.      For the horseradish sauce: In a bowl, mix the mayonnaise, sour cream, horseradish, honey and Dijon. Season with salt and pepper.

2.      For the onions: Pour the buttermilk over the onions and let them sit for about 30 minutes.

3.      Heat 3 inches of oil to 350º F in a medium Dutch oven.

4.      Whisk together the flour, cayenne, paprika and some salt and pepper. Remove the onions from the buttermilk and toss them in the flour until thoroughly coated. Fry in batches until the batter is golden, 2 to 3 minutes. Let drain on paper towels and season with salt while hot.

5.      For the sandwich build: On the toasted onion rolls, begin with a slice of cheddar, pile the meat high, add as many crispy onions as the sandwich will hold and schmear the top bun with a healthy portion of horseradish sauce.

barely tweaked from Jeff Mauro

horseradish sauce ingredients

horseradish sauce

onions soaking in buttermilk

I decided to soak my onion in a ziploc bag and then pour out
the buttermilk. I probably should have drained the onions instead
because I think a little too much buttermilk may have stayed behind.

flour and spices

I poured the flour mixture right into the bag of soaked onions
and it was a little gummy. That's why I think there was too
much buttermilk left behind in the bag. But I moved ahead.

onions frying

fried onions

cheddar cheese layer

roast beef layer

Actually, that's london broil (it looked
better than the roast beef at the store).

onion layer (about to be topped off with a
bun top slathered with horseradish mayo)

I didn't have onion rolls, but I'll bet that's great.

The Roast Beast Master with Crispy Onions
and Creamy Horseradish Sauce

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