Preheat your oven to 400°F (200°C). Prepare a 9x5 inch loaf pan by lining it with parchment paper, ensuring some paper hangs over the sides for easy removal after baking.
In a large mixing bowl, use an electric mixer to beat the softened cream cheese until it's smooth and creamy, approximately 2 minutes at medium speed.
Gradually add the granulated sugar to the cream cheese. Continue beating until the mixture is well combined and creamy.
Add the vanilla extract and sea salt to the batter, mixing until everything is smooth and uniform.
Incorporate the eggs into the mixture, adding them one at a time. Make sure to mix well after each egg to ensure they are fully blended into the batter.
Slowly pour in the heavy cream, mixing on low speed until it is completely combined into the mixture.
Sift the all-purpose flour and the lemon zest over the batter. Gently fold the flour and zest in using a spatula or a wooden spoon, being careful not to overmix. Stop as soon as no dry flour remains visible.
Pour the cheesecake batter into the prepared loaf pan and use a spatula to smooth the top for an even surface.
Bake in the preheated oven for 40-45 minutes. The cheesecake should be puffed and deeply golden brown on top, with firm edges—while the center may still have a slight jiggle.
Once baked, turn off the oven and keep the cheesecake inside with the door ajar for 1 hour to allow it to cool gradually, which minimizes the chances of cracking.
After the hour, carefully remove the cheesecake from the oven. Allow it to cool completely at room temperature before transferring it to the refrigerator. Chill for at least 4 hours, or preferably overnight, to develop the flavors fully.
When ready to serve, gently lift the chilled cheesecake out of the pan using the overhanging parchment paper. Slice into generous pieces and enjoy!
Notes
Serve slices on a rustic wooden board, topping with fresh berries or a drizzle of honey. Adding a sprig of mint enhances the visual appeal.