Beef, Red Pepper, and Mushroom Skewers - Barbecuebible.com

Ingredients

• 1 tablespoon black peppercorns
• 1 tablespoon coriander seeds
• 1 tablespoon cumin seeds
• 3 cilantro roots (about 1/2 tablespoon), minced (if available)
• 4 cloves garlic or 2 garlic scapes, minced
• 1/2 teaspoon flavorful hot red pepper, like New Mexico chile or Aleppo pepper
• 2 teaspoons kosher salt
• 2 tablespoons extra-virgin olive oil
• 1/2 tablespoon balsamic vinegar
• 1 tri-tip beef roast (about 2 pounds), cut into 1-inch chunks
• 1 large red bell pepper, cut in 1-inch bits
• 12 ounces button mushrooms, halved or quartered (similar size as pepper and beef)
• 1/2 cup cilantro leaves and stems, roughly chopped