Cheesy Tomato Pie

Ingredients

• Pie Dough:
• – 1 3/4 cups all-purpose flour
• – 1 1/2 cups finely grated Real California dry Jack cheese, divided
• – 1/4 teaspoon kosher salt
• – 3/4 cup cold Real California unsalted butter, cut into 1/2 inch cubes
• – 1/4 cup ice water, plus more as needed
• – 1 large egg white
• Filling + Topping:
• – 5 large heirloom tomatoes, thickly sliced
• – Salt, as needed
• – 2 tablespoons Real California unsalted butter
• – 1 sweet onion, thinly sliced
• – 2 cloves garlic, minced
• – 1/2 teaspoon salt
• – 1/2 teaspoon freshly ground black pepper
• – 1 cup Real California mascarpone cheese
• – 1 cup Real California grated mozzarella cheese
• – 1 large egg
• – 1 large egg yolk