My Mom'S Yogurt - cooking recipe

Ingredients

1/2 gal. milk
3 heaping Tbsp. prepared yogurt
1 large can Pet milk

Preparation

Heat milk slowly over very low heat until small bubbles appear in a
complete
circle
around edge of pot.
Cool.\t(My Grandmother always said that it is at the right temperature if you could place
your
little finger in and stir at a moderate speed for 15 times around the edge of the pot.)