Heat coconut milk over medium heat in a saucepan until hot but not boiling, about 5 minutes.
Remove from heat and whisk in sifted matcha powder, sugar, vanilla extract, and sea salt until thoroughly combined. Taste and add additional sugar if desired.
Transfer to a rectangle glass container with an air-tight lid. Chill mixture in the refrigerator for 30 minutes, then whisk the cold ice cream mixture, cover with plastic wrap and freeze for 2 hours.
After 2 hours in the freezer, use a spoon to scrape the sides and mix the ice cream a bit for even freezing. Freeze an additional 2 hours for soft serve or 4 hours for firmer ice cream.
Scoop ice cream into bowls then drizzle with Ty Ling Sesame Oil for that complimentary sesame flavor.