freshly ground pepper
salt
1/2 cup thinly sliced sour pickles
4 cups coarsely chopped Napa cabbage
1 tbsp. cornstarch
2 cups mung bean sprouts
2 large jalapenos
6 cloves large garlic
2 red onions, quartered through the core
1 quart beef stock or low-sodium broth
1/4 cup dry white wine
1/4 cup sugar
1/4 cup soy sauce
1 tbsp. vegetable oil
3 pounds trimmed beef chuck, cut into 3-inch pieces