In a medium-sized bowl, mix all ingredients for the Overnight starter. This will be the consistency of a thick pancake batter; it will not seem like dough. 

Let overnight starter rest on the counter or in a warm place in your kitchen overnight or for at least 4 hours. Overnight will help result in more flavor in your rolls. 

When you're ready to make your dough, add all ingredients into your stand mixer or if you're mixing by hand, add to a large bowl. 

If you're using a stand mixer, mix/knead the dough with the dough hook for 8 minutes and you should have a smooth dough If you're kneading by hand, you will want to knead for 15 minutes or until you have a smooth dough. 

Place the dough in a lightly oiled bowl that is covered with a lid or plastic wrap and place it in a warm spot in your kitchen for 45 minutes. 

After 45 minutes, with a slightly wet or greased hand, fold the dough over itself in the bowl 7 or 8 times. Just pinch one corner, stretch it straight up and fold it down over the dough. Rotate the bowl slightly and do it again. Repeat 7 or 8 times. This is called a "stretch and fold." It isn't required, but it helps build structure and gluten in the final bread. 

Recover the bowl and rest the dough for another 45 minutes. 

Shape the dough into 5 even-sized pieces. I usually use a scale to be precise. Form each dough into a ball and let the dough balls rest on the counter for 15 minutes prior to final shaping. 

After 15 minutes, using your hands, shape each dough ball into a flat rectangle about 6 inches by 4 inches. Roll each rectangle tightly on the long side. So, you should end up with a cylinder that's about 5 or 6 inches long. When you're done rolling, pinch the seam closed very well and roll the dough log/cylinder on the counter 3 or 4 times to help shape. Taper the ends if you want for a more professional look. Place all shaped rolls on a parchment-lined sheet pan and allow to rest for 1 to 1.5 hours. 

After 45 minutes to 1 hour of final rise time, preheat your oven to 425 degrees F (218 C). 

Add an egg white and a tablespoon of water to a bowl and stir until combined. This is your egg white wash.

After the oven has pre-heated, paint your rolls liberally with the egg white wash and add any sesame seeds on top of the egg white wash if you desire. At this point, you can add one or two slashes with a very sharp knife to each roll. These are purely decorative. 

Bake for 20 to 25 minutes rotating the pan 180 degrees at the halfway point.

After your rolls have achieved the level of browning that you desire, remove them from the oven and allow them to rest on a wire rack before serving.