As promised, here is proof that you can make ice cream without a machine! It is very much like soft serve, but I'm sure you could freeze it a little longer and it would firm up more. I just couldn't wait and I wanted to eat it! :)
Here are the progression pics and the recipe is below. Enjoy!
1 cup milk
A pinch of salt
3/4 cups sugar
1 vanilla bean
5 egg yolks
2 cup heavy cream
A few drops of vanilla extract
1. Heat the milk, salt, and sugar in a saucepan. Split the vanilla bean lengthwise and scrape the seeds into the milk with the tip of a paring knife. Add the bean pod to the milk.
2. Stir together the egg yolks in a bowl and gradually add some of the warmed milk, stirring constantly as you pour. Pour the warmed yolks back into the saucepan.
3. Cook over low heat, stirring constantly and scraping the bottom with a heat-resistant spatula until the custard thickens enough to coat the spatula. Strain the custard into the heavy cream. Rinse the vanilla bean and put it back into the custard and cream to continue steeping. Chill thoroughly, then remove the vanilla bean and freeze in your ice cream maker according to the manufacturers instructions or follow the directions below to freeze without a maker.
Making Ice Cream Without A Machine
1. Prepare your ice cream mixture, then chill it over an ice bath.
2. Put a deep baking dish, or bowl made of plastic, stainless steel or something durable in the freezer, and pour your custard mixture into it.
3. After forty-five minutes, open the door and check it.
As it starts to freeze near the edges, remove it from the freezer and stir it vigorously with a spatula or whisk. Really beat it up and break up any frozen sections. Return to freezer.
4. Continue to check the mixture every 30 minutes, stirring vigorously as it's freezing. If you have one, you can use a hand-held mixer for best results, or use a stick-blender or hand-held mixer.
But since we're going low-tech here, you can also use just a spatula or a sturdy whisk along with some modest physical effort.
5. Keep checking periodically and stirring while it freezes (by hand or with the electric mixer) until the ice cream is frozen. It will likely take 2-3 hours to be ready.
6. Transfer to a sealed container until ready to use.