Egg noodle with roasted red pork

Recipe
Pork loin 300g
Chinese spice powder 1tsp
Oyster sauce 1tbsp
2Coriander roots
Pepper
Chopped 10 garlic cloves
Ketchup 2tbsp
Soy sauce 2tbsp
Sugar 1tbsp
Coconut sugar 1tbsp
Pork seasoning powder 1/2tsp
Food coloring powder
Water 1/4cup(for mix with food coloring)
Water 1cup for boiling pork
White sesame 1tbsp
Tapioca flour 1tbsp
Water 1tbsp(for mix with tapioca flour)