In large bowl, mix water, sugar and yeast.
Let sit until yeast activates and looks foamy, about 5 - 10 minutes.
Then olive oil, salt and 2 cups of flour.
Mix with dough hook on low until dough looks rough, about 2 minutes.
After 2 minutes, turn to medium speed for 5 minutes and gradually add remaining 1/2 cup of flour and chopped fresh rosemary. Mix until the dough looks smooth and elastic.
Cover bowl in plastic wrap and let rise for one hour (I transferred to a slightly oiled bowl and coated the dough.)
After one hour, pre-heat oven to 400 degrees.
With lightly floured hands, transfer dough to lightly floured surface and form into loaf shape.
Place dough on mat or parchment on a cookie sheet.
Cover with a towel and let rise for 20 - 30 minutes.
Uncover and use a sharp knife to cut a few slices across the top.
Brush with olive oil.
Sprinkle with Sea Salt and Chopped Fresh Rosemary.
Bake for 20 minutes.
Cool on rack for about 15 - 20 minutes before slicing.
Enjoy!