Step 1
Pound skirt steak briefly on each side with the textured side of a meat mallet.
Step 2
Cut a piece of parchment twice as long as the skirt steak; place steak on top half of the paper. Rub top of steak with 1 teaspoon salt and 1/2 teaspoon black pepper; drizzle 1 tablespoon honey in an S-shaped line down the top of the steak.
Step 3
Fold bottom of the parchment paper up over the steak; flip steak over and peel the parchment paper from the unseasoned side of steak. Repeat seasoning with remaining 1 teaspoon salt 1/2 teaspoon black pepper and 1 more tablespoon honey.
Step 4
Fold parchment paper tightly around steak folding the edges over several times so honey can't leak out. Place wrapped steak in a resealable plastic bag. Refrigerate 8 hours to overnight.
Step 5
Preheat outdoor grill for high heat and lightly oil the grate.
Step 6
Lay steak on the hot grill; grill for 1 minute then use tongs to flip steak and move to another area of the hot grate. Continue flipping and moving the steak at 1-minute intervals until the steak is very well seared on both sides 4 to 5 minutes in all. Inside of meat should still be pink.
Step 7
Remove steak and wrap in aluminum foil; let rest 5 to 10 minutes before cutting the steak diagonally across the grain into 1/2-inch strips.
Step 8
Mix horseradish mayonnaise and Worcestershire sauce in a bowl; serve as dipping sauce with steak.