10–12 drops stevia liquid, or 1 teaspoon powdered, or to taste
METHOD:
To make the dark chocolate, melt the butters in a bowl over a saucepan of boiling water. Add the other ingredients and whisk until smooth.
Place in love heart moulds and freeze for 30 minutes.
Remove from the freezer and wait a few minutes before popping the chocolate out from the moulds. If in hard moulds, tap the bottom until the hearts fall out.
To make white chocolate, follow the method above but omit the cacao powder.
The chocolates will keep in the freezer for up to 1 month.