Rosemary Ciabatta Bread

Name: Rosemary Ciabatta Bread
Cuisine: European, Italian, Mediterranean
Ingredients: 4 cups white flour; 1/4 tsp active dry yeast, heaping, NOT instant; 1 1/2 tsp salt; 2 cups warm water; 1 Tbsp olive oil; 4 Tbsp white flour; large bowl; cotton towel; cooling rack; parchment paper; cookie sheet; dried rosemary; coarse sea salt