Steak House Flatbread Pizza with California Raisins - California Raisins

Ingredients

• 4 1 / 2 California raisin juice concentrate*
• 3 Tablespoons California raisin paste*
• 2 Tablespoons tomato paste
• 2 Tablespoons Worcestershire sauce
• 1 Tablespoon roasted garlic purée
• 1 / 4 Teaspoon ancho chile powder
• 1 / 2 Teaspoon anchovy paste
• 2 Tablespoons orange juice
• 2 Tablespoons dry red wine
• 2 Tablespoons veal demi-glace
• 1 / 2 Teaspoon fresh ground black pepper
• 8 Ounces flatiron steak*
• 2 Tablespoons fresh rosemary leaves, finely chopped
• 1 medium red onion
• 1 olive oil
• Sea salt, to taste
• Fresh ground black pepper; to taste
• 1 Cup baby spinach leaves
• 4 square lavosh-style (8-inch) flatbreads
• 1 / 2 Cup grated Parmesan cheese
• 1 / 4 Cup olive oil
• 2 Cups Fontina cheese, grated
• 1 / 4 Cup chopped Italian parsley