Place all the ingredients in a food processor and blend for approximately 3-5 minutes. You want to blend this well, but stop before it turns into nut butter. The mixture should form easily in your hands without being mushy.
Press the dough into the molds, using a knife to cut off any excess dough that will keep the backs from being flat.
Freeze for 20-30 minutes, pop them out onto a plate and repeat until the dough is used up.
Store in the fridge for up to 3 days, or in the freezer for longer term storage. Just be sure they are packed air-tight if you freeze them.