For most, making homemade edibles begins by infusing a fat (normally butter) with cannabis and then preparing the baked good using this "cannabutter". Creating cannabutter with marijuana concentrate such as wax or oil follows a similar process – but creates much stronger edibles!
You can view a "recipe" for cannabis butter here. Once you have a batch of butter, the sky is the limit in terms of what you choose to make with it. https://breckorganictherapy.com/make-high-potency-edibles-using-concentrates/