In a large sauce pan, combine coconut oil, cacao powder, maple syrup, and salt.
Heat over medium heat and whisk until fully combined. As soon as it starts to boil, turn off the heat.
Spoon about 1 tablespoon into each liner. Once they all have some chocolate in them, tilt the pan gently in a circle to get the chocolate to go up the sides a little.
Leave the remaining chocolate in the pan for the top.
Place in the fridge for 10-15 minutes- until they are fully hard.