It is possible to cook the sugar and water mixture over low heat to make the caramel sauce.
Do not stir the mixture; let it simmer until it changes color. It could take as long as 5 minutes.
Cook it to the point that sugar changes color to amber.
Be careful at this point. It can burn quickly.
Mix vanilla, butter, sea salt, and cream when it changes color.
Mix milk, matcha powder, caramel, vanilla, and ice cream to make an ice cream milkshake with green tea caramel.
Mix all the ingredients until blended and smooth.
Drizzle the caramel sauce into the glass and pour some matcha powder.
Pour the milkshake mix into the glass and top it off with a scoop of whipped cream.
Sprinkle some matcha powder over the dish and serve.