Step 1 :

Place the flour in a bowl, make a well and add water and salt. Mix with a spatula and add the olive oil.
In a small bowl, melt the yeast in a little warm water with a pinch of sugar and add it last.
Knead until the dough is homogeneous and make a ball that can be detached from the sides.
Put a cloth over it and let it rest at room temperature for about 1 hour, until the dough doubles in volume.

step 2:

In a saucepan, soften the onion and the chili pepper in oil. Season with salt and pepper. Add the  Double concentrated tomatoes and bring to a boil. Simmer for about 10 minutes. Add garlic and continue cooking for 2 minutes. Let cool. Adjust the seasoning.

step 3:

In a large non-stick skillet, brown the shrimp in the oil, half at a time. Season with salt and pepper. Return the shrimp to the pan. Add garlic and chili pepper and continue cooking for 1 minute.
Add 75 mL ( cup) tomato sauce and parsley. Adjust seasoning. Keep warm.

step 4:

Preheat oven to 230°C
Spread tomato sauce on top. Brush the edge of the pastry with oil. Bake on the hot stone for about 10 minutes or until golden brown. Remove pizza from oven and sprinkle with 2 cups of cheese. Continue baking for about 2 minutes or until cheese is melted. Remove pizza from oven and top with  the shrimp mixture. Drizzle with olive oil.