Dissolve the instant espresso powder in the hot water.
Alternatively, make your own espresso if you have an espresso machine, or use a french press to make espresso with ground espresso beans without a machine.
For the foamed milk:
Add the milk to a mason jar along with the caramel sauce and shake very well to froth. Froth with a hand-held milk frother.
Alternatively, froth the cold milk in an electric milk frother (if you have one) on the cold setting (or the hot setting if you'd like a warm latte), or simply shake the mason jar very well until everything is combined and a small layer of foam appears on the top of the milk.
To serve:
Drizzle some caramel sauce inside the glass. Add the ice.
Pour the espresso into each glass.
Pour 1 1/2 cup of the milk over the espresso and ice into each mug or glass.
Top with whipped cream and additional caramel sauce for serving (optional).
Notes
This recipe makes 2 servings (1 shot of espresso each, 1.5 cups of milk).To make this recipe low carb/keto, simply replace the caramel sauce with a few drops of liquid stevia.For a warm latte, simple skip the ice and heat the milk together with the caramel sauce in a pot on the stove just to a simmer, or in the microwave, before frothing.