1 tablespoon extra-virgin olive oil, plus more for drizzling |
1 small onion, finely chopped |
1/2 cup vodka |
2 tablespoons worcestershire sauce |
2 teaspoons hot pepper sauce |
1 cup tomato sauce |
1 rounded tablespoon prepared horseradish |
kosher salt and freshly ground black pepper |
1 1/3 pounds beef sirloin cut into large bite-sized pieces, about 1-inch squares |
steak seasoning blend or coarse salt and black pepper |
6 to 8-inch bamboo skewers |