Prepare Amish bread starter by combining 1 cup each of flour, sugar and milk in a 1-gallon zippered freezer bag. Seal the bag and knead the contents to mix. Keep the bag at room temperature, kneading it daily for 10 days and feeding the starter on day six.
To feed the starter, add 1 cup each of the original ingredients. Once it is mature on day 10, transfer it to a bowl, add another cup of each of the ingredients, and mix well. Place 1 cup of the starter in each of three 1-gallon freezer bags to give to friends, along with the starter directions. If you plan to make more starter for yourself, keep one of the bags.
Use the remaining starter in the bowl to make Amish friendship bread. To make the bread, preheat the oven to 350 degrees Fahrenheit. Add 1 cup of vegetable oil, 2 eggs and 1 teaspoon of vanilla extract to the starter and stir to combine.
In a second bowl, add 2 cups of flour, 1 cup of sugar, 1 1/2 teaspoons of baking powder and 4 teaspoons of cinnamon. Mix in 1 teaspoon of salt, 1/2 cup of baking soda and 1 package of instant vanilla pudding. Add the dry ingredients to the starter and mix to combine. Pour the batter into two prepared loaf pans and top with a mixture of 3/4 cup of sugar and 2 teaspoons of cinnamon. Bake the loaves for 60 minutes.