In the 40's we would visit my uncle his wife always had lots of tasty butter. They had no refrigerator or Ice cabinet, so the butter was soft. She extended it with canned milk. She passed about 5 years ago and anytime you went to her house, she had her extended butter. We loved it and with the price of butter today, I plan to start making extended butter. Will start out with a cube and add canned milk till it's light and fluffy. Hope it saves us lots of money as my hubby eats bread on his butter.