Preheat oven to 325 degrees. Cut chicken breasts into bite-sized pieces and season with salt and pepper.
In separate bowls, place cornstarch and slightly beaten eggs. Dip chicken into cornstarch then coat in egg mixture.
Heat canola oil in a large skillet over medium-high heat and cook chicken until browned. Place the chicken in a 9 x 13 greased baking dish.
In a medium sized mixing bowl, combine sugar, ketchup, apple cider vinegar, white vinegar, soy sauce, 1 T cornstarch and garlic salt. Add the drained pineapple, and peppers. Pour over chicken and bake for 1 hour.
I stirred the chicken every 15 minutes so that it coated them in the sauce.