Spring Onion and Lemon Focaccia

Name: Spring Onion and Lemon Focaccia
Ingredients: 1/2 cup Extra virgin olive oil; 1/2 cup Chopped spring onions; 1 teaspoon Fresh thyme leaves; 1 Large Russet potato; 2 tablespoons Yeast; 1 teaspoon Sugar; 2 cups Warm water; 2 teaspoons Lemon zest; 2 teaspoons Kosher salt; 5 cups 00 flour; 1-2 tablespoons Extra virgin olive oil; 1/4 teaspoon Kosher salt