Stuffed Shells alla Vodka

Ingredients

• kosher salt, for boiling
• 20 dried jumbo shell pastas
• 3 ½ tablespoons olive oil
• 2 tablespoons salted butter
• 1 cup shallot, finely diced
• ¼ cup garlic, minced
• 6 oz tomato paste
• ¼ teaspoon red pepper flakes, plus more to taste
• ¼ cup vodka
• 1 ½ cups heavy cream
• 3 cups freshly grated parmesan cheese
• kosher salt, to taste
• 1 large egg, beaten
• 15 oz whole milk ricotta cheese
• 2 ¾ cups freshly grated mozzarella cheese, divided
• ½ cup freshly grated parmesan cheese
• 2 tablespoons fresh italian parsley, finely chopped
• ½ teaspoon kosher salt
• ¼ teaspoon freshly ground black pepper
• 4 cloves garlic, grated