INSTRUCTIONS
1. Pulse graham crackers, 2 teaspoons white sugar, and cinnamon in a food processor.
2. Pour in melted butter; pulse until fine crumbs form.
3. Pat the crust into the bottom and 1 inch up the sides of a 8-inch springform pan. Put the pan in the freezer for 20 minutes.
4. Mix cream cheese in the bowl of a stand mixer on medium-low speed until aerated and creamy, about 4 minutes. Add 1 cup sugar and salt; mix for 4 minutes more. Add vanilla extract and lemon zest; mix batter for 1 minute more.
5. Crack 1 egg into the batter; mix for 1 minute. Add remaining eggs; mix for 1 minute more. Stir in the sour cream; mix until it has disappeared into the batter, about 1 minute. Pour into the crust-lined pan. Make a loose tent over the pan with aluminum foil.
6. Pour 1 ½ cups of water into the bottom of the Pressure cooker; add the trivet. Lower the filled springform pan carefully into the Instant Pot(R). Lock the lid into place.
7. Choose the Beans/Chili setting; select high pressure. Set cook time for 60 minutes. When the timer goes off, allow pressure to naturally release for 20 minutes. Remove the lid. Check for doneness; edges should be set and the center should jiggle slightly when shaken.
8. Transfer the cheesecake to the refrigerator. Chill for at least 2 hours, preferably overnight.