After the yeast begins to bubble, add it to the remaining ingredients in the bowl of an electric mixer (or other large bowl). Knead on low speed for 15 minutes or turn out onto a clean work surface which has been dusted lightly with flour and knead for the same amount of time.
The dough should feel slightly sticky when you are done kneading, but it shouldn't cling to your hands. If it does, knead in a few dustings of flour. If the dough doesn't feel slightly sticky, there's not enough moisture; knead in a few drops of water.
Tip: To hydrate the dough just a little, soak a paper towel with water and wrap it lightly over the dough ball and leave it to rest for 5 minutes, then knead the extra moisture into the dough.
Exact measurements for the quantities of flour and water are never accurate since one batch of flour will absorb more or less water than another based upon storage and harvesting methods, age of flour and the type of wheat, the way in which the flour is milled, the weather, and a number of other conditions. Each time the dough is prepared is unique, but experience will teach you the proper consistency.