Whisk the filling ingredients (tahini, maple syrup, coconut oil, vanilla extract, collagen and flour) together.
Put the mixture in the fridge for a few minutes while melting the chocolate.
Melt chocolate and coconut oil over the stove or microwave (check regularly and mix) on low heat.
Transfer the chocolate to a mould, lining only the base, then pop it in the fridge to set for a few minutes.
Form mini dough balls and press down into the chocolate mould.
Pour the remaining chocolate over the top until it’s level.
Place back in the freezer for 5 minutes to harden.
Gently pop out of the mould and dust with edible glitter (optional).