In a heavy bottomed pot, place the sugar, maple water and maple syrup. Heat over medium-high heat until all the sugar dissolves and it starts to produce large, slow bubbles.
Don't stir, just swirl the pan a little, and allow the sugar to caramelize. This will take about 5-10 minutes. If you are using a candy thermometer, you want to get the sugar to just over 300 degrees. It should be a beautiful amber/caramel colour. Remember you are going to add milk to it, so it's okay to get it a bit darker than the actual colour you are looking for.
Remove from the heat, and carefully stir in the salt and 1/4 cup of the non dairy milk. Once it's incorporated, check to see how thick it is. If you want a runnier caramel, add a little more milk, until you get it to the consistency you like.
Store in a covered mason jar in the fridge.