Line a baking sheet with foil and place a baking rack on top. Set aside.
In a large bowl combine pork, onion, garlic, orange zest, soy sauce and chile sauce. Mix thoroughly.
Use a ½ inch metal portion scoop to shape meatballs.
Roll each meatball in gluten free breadcrumbs. Place on prepared baking sheet. Can be done several hours in advance and refrigerated.
Preheat oven to 400°F. When ready turn the setting to broil.
Place the baking sheet of meatballs on the second rack under the broiler. Cook for 6-8 minutes without turning. If they brown too quickly place them on a lower rack until cooked through.