Ice cream knows no season. Sure, you may harbor fond childhood memories from sweltering summer evenings of frolicking around catching fireflies while devouring a melting waffle cone. But, don’t pigeonhole this delicacy. It tastes almost as glorious in March or November as it does in August. If you’ve never eaten homemade ice cream, we pity you—truly. A higher plane of enlightenment exists to which you are oblivious. You’ve heard the saying, “Ignorance is bliss.” Not here. Not even close. Making homemade ice cream used to be arduous. You had to cover this hand-cranked contraption with ice and rock salt and churn it continuously for 25 to 30 minutes. After all that work, you couldn’t immediately enjoy the spoils but had to give it another hour to cure. Things improved with the advent of the electric ice cream machine. About seven...