Step 1

In a medium sauce pan combine water, cacao, sugar, vanilla and salt. Bring everything to a boil over medium/low heat. Boil for 5 minutes whisking constantly. *I mean it, don't walk away or the chocolate may burn. The chocolate will start to thicken as it reduces. Remove from heat.

Step 2

Add to chocolate sauce to a glass jar, cover and add to the fridge. It will thicken more as it cools.