Dissolve yeast and sugar, in 1 cup warm water for approximately 5 minutes. Whisk together Sea Salt, flour, xanthan gum, and Rosemary Garlic Seasoning in a separate bowl.
Make a well in the center of the dry ingredients. Add yeast water, and remaining 1 cup water, and mix together to form a smooth dough. Cover with a clean cloth and let rest for at least 10 minutes.
Brush a Sheet Pan or crisper with oil. To shape dough, roll or press out into pan.
Bake blind initially for 15 minutes.
Spread prebaked pizza crust with prepared Pesto.
Top each with sliced tomatoes and bocconcini.
Sprinkle with Sea Salt and Black Pepper. Drizzle olive oil, if you wish. Bake at 375° F (190° C) for an additional 10–15 minutes.