Toss chicken with 2 tablespoons olive oil and 1 1/2 tablespoons SPG seasoning.
Drizzle 1 tablespoon olive oil over vegetables and season with 1/2 tablespoon SPG seasoning.
Make the sauce: In a small pan, combine maple syrup, hot sauce, minced garlic and smoked paprika. Cook over medium-high heat, whisking occasionally. Bring to a low boil, cook 1-2 minutes. Remove from heat and set aside.
Preheat your Blackstone griddle over medium-high heat. Add beef tallow or olive oil and let it melt across the surface.
Add chicken pieces in a single layer on one side and vegetables on the other. Cook, turning occasionally, until fully cooked.
Scoop chicken into the pan with sauce and toss to coat. Return chicken to the griddle, reserving excess sauce, cooking for another 2–3 minutes until the sauce thickens and coats the stir fry.
Remove from heat, garnish with fresh chopped cilantro if desired and serve hot. Drizzle with remaining sauce if desired.