When I first saw this recipe on @Leethal's tweet, I was a bit shocked, thinking "you can leave milk out for three weeks, mixed with bacteria and yeast-loving sugar, and still drink it?" I mean, I've made some overnight cultured creams and yogurts, but this seemed wild.
And then I thought about it a bit more, and realized that the vodka, even in equal parts to the nutrient rich, germ happy milk and sugar, must be bacteriostatic enough to prevent anything from growing in there. (You like that? Bacteriostatic? See?! I paid attention in high school.)
Windall and Lenore from Evil Mad Scientist found themselves in a terrible predicament this winter - 75 pounds of free citrus fruit, and no way to eat it all. So, they opted for the route that many take when they find themselves with a plethora of produce - they canned it by makin' marmalade.
"The first step is to peel the fruit. We've made lemon, lemon-orange, and orange marmalade, but you can use pretty much any citrus fruit.
We looked around a bit and settled on this recipe primarily because of its simplicity. It scales well. For a large batch, just keep peeling and cutting fruit until the pot is full or your hands were tired. You can also scale down--grab a couple of oranges from the cafeteria and you'll make a lot of friends in your dorm kitchen."