Sloppy Joe Focaccia

Ingredients

• 1-1/2 pounds Ground Beef (80% lean or leaner)
• 4 cups (500 grams) bread flour
• 1-2/3 cups (400 grams) warm water
• 1/2 teaspoon instant or active dry yeast
• 1-1/2 teaspoons salt
• 2 tablespoons olive oil, plus additional for pan and garnish
• 1 medium yellow onion, finely chopped
• 2 cloves garlic, minced
• 3/4 cup ketchup
• 2 tablespoons tomato paste
• 2 tablespoons Worcestershire sauce
• 1 tablespoon brown sugar
• 1 tablespoon yellow mustard
• 1 tablespoon apple cider vinegar
• 1/2 teaspoon red chili flakes (optional)
• Kosher salt and pepper, to taste
• 1/4 cup water or beef stock
• 1-1/2 cups shredded mozzarella or provolone cheese
• Pickled jalapenos, sharp Cheddar cheese and scallions (optional)