Heat oven to 350 degrees. Tightly wrap the outside of the springform pan with an oven bag and tie on the side if possible. Then, tightly wrap the outside with two to three layers of aluminum foil, making sure the foil goes all the way up the side for extra insurance against leaking.
To make the cheesecake filling, combine the softened cream cheese and white sugar in the large mixing bowl. Using a stand mixer with the paddle attachment or a hand mixer, beat on medium speed until smooth, creamy and fluffy, about two to three minutes. As needed, scrape down the side of the bowl with a spatula.
Beat in the sour cream, vanilla extract and salt until it all comes together. Don’t overmix.
Beat in the eggs one at a time at medium speed. Mix just until the egg is fully incorporated before adding the next. Stop mixing once the egg is combined. Stir in the crushed mini eggs.
Pour the cream cheese mixture into the prepared crust.
Place the wrapped springform pan into a large roasting pan. Fill with enough boiling water to come about halfway up the side of the springform pan. Don’t pour water past the foil.
Place the cheesecake on the middle rack, close the oven door and immediately turn the oven to 250 degrees. Bake for 1 hour and 30 minutes.
After the hour and 30 minutes, turn off the oven completely. Do not open the oven door. Let the cheesecake sit for 3 hours. Do not open the oven door at this point either. It needs the heat to finish setting, and you will lose a lot of heat if you open the door.
After three hours, remove the cheesecake from the oven. Cover the top with plastic wrap and refrigerate for at least eight hours. Overnight chilling works well here.