Southern Banh Mi Tacos

Ingredients

• 1 cup mayonnaise
• 4 teaspoons prepared horseradish
• 4 teaspoons Worcestershire sauce
• 4 teaspoons soy sauce
• 2 tablespoons plus 2 teaspoons Sriracha hot chili sauce
• 1/2 teaspoon fresh lime juice
• 1 3-pound chuck roast
• 2 ½ teaspoons fine sea salt
• ¾ teaspoon cracked black pepper
• 3 cloves garlic (chopped)
• ½ yellow onion (sliced)
• 1/2 cup beef stock
• 2 teaspoons olive or canola oil (will be divided)
• 6 tablespoons rice vinegar
• 2 tablespoons sugar
• pinch fine sea salt
• 3 or 4 medium carrots
• 3 or 4 broccoli stalks
• 12 corn tortillas
• ½ fresh jalapeno pepper (thinly sliced)
• 1/4 cup fresh cilantro leaves