So we got an ice cream maker and make our own now. I've tried a few recipes, but this is the simplest one and it makes good ice cream. And it's really flexible. For the dairy, you can use a lot of different things. I aim for 3 cups of milk and 1 cup of something creamier, like whipping or heavy cream or coconut milk. You can change the ratios however you like. You can also use yogurt or buttermilk. You can add vanilla, fruit, other flavorings, honey, whatever, to make the ice cream you want. We like to make chocolate with 1/2 cup cocoa.
4 cups dairy
2 T cornstarch
1/2 c sugar
Pinch of salt, if you want
Combine the cornstarch and 1/2 cup dairy in a small bowl. Heat the rest of the milk, plus the sugar and salt until it begins to steam. Stir the cornstarch and dump it in the pot and stir and cook over medium heat till it begins to boil, then lower the heat all the way and cook for 5 minutes. You can strain it if there are lumps, although that hasn't been a problem for me. Cool, chill, and freeze in your ice cream maker.