1. Dissolve yeast in a bowl with warm water.
2. After the yeast is proofed, add the sourdough starter and mix.
3. Add sugar, salt and oil. Add spices, as desired. Mix well.
4. Gradually add flour to form a stiff dough.
5. Knead on a floured surface until smooth.
6. Place in a greased bowl. Turn dough over in the bowl in order to grease both sides. Cover and let rise until doubled, about 2-4 hours. 

To Make Homemade Pizza

1. Preheat oven to 400°.
2. Divide the dough in half for 2 medium pizzas or roll out the entire batch of dough for a 9×13 pan, ¼-½ inch thick.
3. Bake for 5 minutes so the dough does not become soggy.
4. Cover crusts with pizza sauce. You can use a red pizza sauce, Alfredo sauce, garlic sauce or a tasty pesto.
5. Add your choice of toppings and cheese.
6. Bake at 400° on a baking pan or pizza stone (like this one)* for about 15 minutes.