Grilled Wagyu Tri Tip with Charred Scallion Sauce

Ingredients

• 1 Lone Mountain Wagyu 2lb Fullblood Wagyu Tri Tip roast
• 1 Tablespoon kosher salt
• 1 Tablespoon light brown sugar
• 1 teaspoon garlic powder
• 1/2 teaspoon ground cumin
• 1/2 teaspoon cayenne
• 1/2 teaspoon ground black pepper
• 1 bunch scallions
• 2 jalapeños
• 2 teaspoons extra-virgin olive oil
• 1 clove garlic, minced
• 1/8 teaspoon ground cumin
• 1 tablespoon lemon juice
• 1 teaspoon sherry wine vinegar