In a medium mixing bowl add a ¼ cup very warm water. Sprinkle in the yeast and let set a couple of minutes.
Measure in the salt and sugar and stir.
Measure in the 1 ½ cups of very warm water and 2 tablespoon of olive oil.
One cup at a time, measure in the flour, stirring after each cup. Add the flour until you get a nice semi-sticky dough. Cover with press-n-seal or a dish towel and let rise for about a half-hour in a warm part of the kitchen. Make sure it doubles in size.
While it is rising make the ricotta mix and set it aside and preheat the oven to 450 degrees. (Recipe below)
Once it has doubled in size, turn onto a floured surface and sprinkle another tablespoon of flour on top of the dough to make it easier to work with.
Knead the dough for a couple of minutes until you have a nice dough ball that's not sticky.
On a large cookie sheet evenly coat with 2 tablespoon of olive oil. Set aside
With a rolling pin roll the dough out to fit the whole length of the large cookie sheet. If you don't have a large cookie sheet you can divide this dough onto 2 regular size cookie sheets. Use your fingers to press the dough out onto all the edges of the cookie sheet.
Once the dough is covering the entire length of the cookie sheet, spread the remaining 3 tablespoon of olive oil over the dough.
Spread the ricotta mixture evenly over the dough.
Sprinkle 2 cups of mozzarella on top of the ricotta.
Bake at 450 for about 20 minutes or until crust is brown and cheese is getting bubbly.
Cut into strips or squares and serve plain or with marinara sauce.