Pour the maple syrup into your mug and add the sea salt. Pour the espresso into the mug and give it a swirl to integrate the maple syrup and salt.
Warm you non-dairy milk in a milk frother or on the stove to about 140-160 degrees F. Pour the warmed milk over the espresso mixture. Enjoy immediately.
You can replace the espresso with about a ½ cup of strong coffee if you like.
So far, the best non-dairy milks for frothing (in my experience) are Elmhurst’s unsweetened cashew milk (just cashews and water!) and MALK’s maple pecan milk. Also, homemade cashew milk with a ratio of 1:4-5 nuts to water is great!