I don't know who Effie is, but the idea of making homemade yougurt is super exciting. I got this from No Impact Man

1) Boil whole milk (for some reason it doesn't come out right with less than whole milk) in a large pot until it boils and foams at the top. Shut if off before it spills over.

2) Let the milk cool off until you can keep your pinky finger in the milk for 10 seconds without burning it (a temperature reading would have been great for this step but I don't think they had these back in Greece 70 years ago), so this will be the most difficult step.

3) In a small bowl (that holds about 2 cups) add one tablespoon of live yogurt (regular commercial yogurt w/live bacteria in in) and beat it until smooth. Slowly add to this starter one cup of the milk from the pot stirring slowly until combined.

4) Transfer this mixture (in #3 above) to the pot of boiled milk slowly pouring it in the pot while mixing the pot of milk the whole time to combine thoroughly (with a spatula or long spoon).

5) Pour into glass or plastic containers and seal them.

6) Arrange the containers together and cover with 2 to 3 towels keeping them in a warm place of the house (and no, you don't need some sort of a yogurt maker gadget to keep them warm). Let them sit overnight.

7) In the morning place them in the refrigerator and they will get cold. Yogurt is done.

8) Do a dance!