Stir peanut butter so thoroughly mixed. If you made your own peanut butter from our recipe, it shouldn’t need any mixing. The recipe is linked below.
Measure and pour the bourbon into a bowl. Scoop the peanut butter into the bowl and stir thoroughly.
The mixture will change color and become very cloudy.
Cover with plastic wrap and allow it to sit at room temperature for 4 or 5 hours, stirring every hour to make the peanut butter gets fully infused.
Cover the mixture with plastic wrap and freeze it overnight. If you're worried about it spilling, you can transfer the mixture to a jar or a container. Just make sure whatever you put it into has a large mouth.
The next morning, there may or may not be solid fats frozen on top. Since I don’t use oil to make our homemade peanut butter and I use dry roasted peanuts, I don’t get any fat solids on top. Results may vary for you. If there are fat solids on top, scoop them out and throw away.
After removing any fat solids, pour the mixture into a nut milk bag and drain into a new bowl. Use a rubber spatula to free any peanut butter sediment that has collected on the bottom of the bowl.
Squeeze the nut milk bag to help separate the liquid whisky from the peanut butter.
Cover the bowl and repeat the freezing process overnight again. Drain the bourbon through a nut milk bag again. This will help remove more fat solids.
Repeat this freezing fat removal process until there are no more fats and peanut butter to remove from the mixture.
Store in refrigerator.