Prepare the crust
Mix graham crumbs, sugar, and melted butter. Press firmly into a greased 7-inch springform pan.
Make the filling
Beat cream cheese until smooth.
Add sugar and mix well.
Add eggs one at a time.
Mix in sour cream, vanilla, and lemon juice until creamy (don’t overmix).
Set up slow cooker
Pour filling over crust.
Cover the top of the pan tightly with foil.
Place the pan in the slow cooker.
Add 1–2 cups of hot water around the pan (water should come about 1 inch up the sides).
Cook
Cook on LOW for 2 to 2½ hours.
Center should be slightly jiggly but set around the edges.
Cool properly (very important!)
Turn off slow cooker.
Let cheesecake sit inside (lid slightly open) for 1 hour.
Remove and refrigerate at least 4 hours or overnight.