To a high-speed blender, add the dates and enough of the cashew milk to cover the dates (for me, that was ½ cup). This is to make blending the dates easier. If you just dump everything together in the blender, it takes forever to blend the dates.
1/4 cup (60 grams) pitted dates, 3/4 cup (180 ml) unsweetened cashew milk
Blend on high until totally smooth and then add the rest of the cashew milk and all the other ingredients.
5 tablespoons strong coffee, 6 tablespoons maple syrup, 1 1/2 teaspoons Dutch-process cocoa powder, 1 teaspoon vanilla extract, 1/2 cup (120 grams) coconut cream, 1 1/4 cups (300 ml) Irish whiskey
Blend on high for 1 minute.
It'll thicken in the fridge and also separate. But it's easy to combine by shaking the bottle or stirring with a spoon. I stir after about an hour and then it stays combined, but still think it's good to give it a little shake before serving.
Refrigerate for up to 3 days. It can also be frozen for up to 2 months.