Tôm xào hột vịt muối ( Shrimp Stir With Salted egg Yolks )

1 lb = 450 grams Tom - Shrimp 6-8 Hot vit muoi - Salted egg yolks ( Hap - Steamed 20 minutes - Phut ) 2 oz = 60 grams Bo - Unsalted Butter Some Fresh Minced garlic - Toi tuoi Bot nang Tapioca - Bot khoai Tay -Potato Starch Granulated GARLIC - Bot toi 1/2 Tb Nuoc mam - Fish sauce ( Optioal - Tuy khau vi - Quy vi ) ( Yes or No ) 1/2 - 1 Tsp Duong - Sugar ( Optional - Tuy khau vi - Quy vi ) ( Yes or No )