Gluten Free Chocolate Twinkie

Name: Gluten Free Chocolate Twinkie
Prep time: 30 min
Cook time: 25 min
Total time: 55 min
Cuisine: American
Ingredients: 1 1/2 cups gluten-free flour mix; 1/2 cup cocoa; 1 cup sugar; 1/2 teaspoon salt; 2 teaspoons baking soda; 3/4 teaspoon guar gum (or xanthan gum); 5 tablespoons cooking oil (or coconut oil); 1 tablespoon vinegar; 1 teaspoon vanilla extract (gluten free); 1 egg; 1 cup water; 2 teaspoons hot water; ¼ teaspoon salt; 7 oz marshmallow creme ( (about 2 cups)); ½ cup vegetable shortening; ⅓ cup powdered sugar; ½ teaspoon vanilla extract; 12 oz Semi Sweet Chocolate Chips; 3/4 cup Milk; 1 tbsp coconut oil (butter, or margarine)