Chef John's Beef on Weck Sandwiches
Prep Time: 10 min
Cook Time: 20 min
Ingredients
- ✓ 2 pounds beef top-sirloin roast
- ✓ salt and pepper to taste
- ✓ 1 tablespoon vegetable oil
- ✓ 2 teaspoons all-purpose flour, or as needed
- ✓ 2 ½ cups cold beef broth
- ✓ 2 teaspoons aged balsamic vinegar, or to taste
- ✓ 4 kummelweck dinner rolls, split
- ✓ ¼ cup extra-hot prepared horseradish, or to taste