Chicken Skewers with Maple Mustard Sauce

Name: Chicken Skewers with Maple Mustard Sauce
Ingredients: 3 skinless-boneless chicken breasts (cut into 1-inch sized chunks); 1 tsp black pepper; 1 tsp garlic powder; ½ tsp cumin; ¼ tsp ground cayenne; ¼ cup olive oil; ½ cup maple syrup; ½ cup brown sugar; ¼ cup Worcestershire sauce; 2 tbsp dijon mustard; 1/8 tsp allspice