Next to the orange pot is my yogurt starter. Most recipes that I've tried call for 1-3T. of starter (either homemade or store-bought yogurt - make sure that store-bought yogurt has active cultures and is not flavored) BUT I have found better success if I increase this amount to 1/2 cup of starter. Set yogurt on the counter to bring to room temperature.
The crock pot will be the incubator for the yogurt, which will need to incubate for AT LEAST 7 hours. Make sure that all the jars will be short enough to fit in the crock pot with the lid on. Large kitchen towel is needed to keep in the heat.