In a small bowl, dissolve yeast in water. Let stand 10 minutes.
In a 2-quart glass, plastic or ceramic container, combine 1 cup flour and 1 cup sugar. Mix thoroughly with a whisk or fork.
Slowly stir in 1 cup milk and dissolved yeast mixture.
Cover loosely and let stand at room temperature until bubbly. Consider this Day 1 of the 10-day cycle. For the next 10 days, handle starter according to the instructions for Amish Friendship Bread.
The starter should be left at room temperature. Drape loosely with dish towel or plastic wrap. Do not use metal utensils or bowls. If using a sealed Ziploc bag, be sure to let the air out if the bag gets too puffy.
Your yield may exceed 4 cups depending on the temperature of your kitchen and eagerness of your starter. If this happens, reserve one cup for baking and divide the remaining batter into Ziploc baggies of 1 cup each to freeze for future use or share with friends.
For instructions on how to care for your Amish Friendship Bread starter for ten days, click here. We also have a bunch of FREE instruction printables so you can gift your starter in style!