Homemade Canned Butter

Canned butter used to be commercially-available to campers.
You can try this method at home which may be stored up to 3 years.
I usually freeze butter when I find it on sale
(and let it naturally defrost in the refrigerator).
However, for extended camping trips with no electricity
or in case of power outages, canned butter can come in handy.

Ingredients:
High-quality full-fat butter

Directions:
Use only the highest quality butter (Land O Lakes or equivalent).
Heat jelly jars in 250 degree F. oven for 20 minutes,
without rings or seals.
While jars heat, melt butter slowly until it comes to a boil.
Reduce heat, cover and simmer for 5 minutes.
Pour melted butter carefully into heated jars,
being careful not to get any butter on rim of jar.
Add lid and ring and close securely.
They will seal as they cool.
Shake jars a few times during cooling to prevent separation.
Put into refrigerator or other cool place until butter hardens.
After hardening, butter will store for 3 years.