Preheat 2 cast iron pans. Coat the beef with oil then well in salt. Mix the peppercorns together and roll the beef in it. Coat well. When pans are screeching hot, place the beef in one and place the second pan on top, pressing down. This is called doing a "Pittsburgh". When the top and bottom get blackened, remove and let rest 3 minutes before slicing into 1/8-inch slices. Cut nori in half lengthwise. In a bowl, whisk together juice, soy and oil. Toss with spinach, reserve.
In a small bowl, mix together wasabi and creme fraiche. Using wet hands, lightly pat rice on bottom half of nori, 1/4-inch thick. Place 2 or 3 slices of beef on the rice. Place a small mound of salad diagonally across the rice from the top left corner to the bottom right. Drizzle with wasabi mixture on top of salad. Roll a cone by bringing the bottom left corner of the nori to half way up the right side edge then roll over. Moisten the top edge to glue. Repeat process.
Serve on small bed of salad or eat on the go.
Drink Suggestion: Suishin, Japanese Sake Laurent Perrier Champagne
MASTER SUSHI RICE
Copyright, 2000, Ming Tsai, All Rights Reserved
4 cups sushi rice (Calrose/short grain)
Water, up to Mount Fuji
1 cup rice wine vinegar
1/4 cup mirin
1/2 cup sugar