Place all the cottage cheese in a fine mesh strainer over a bowl to fit to straighten out the moisture. Use a rubber spatula and press gently on the cottage cheese, forcing the liquid to fall to the underneath pan. Let stand for 15 minutes at room temperature to drain water content.
Add the drained cottage cheese – will have 4 1/2 cups (1 cup liquid remaining for another us or discard) Add to the carafe of a blender.
Add the remaining ingredients in the order written; eggs, sour cream, peanut butter, sugar, vanilla and sea salt.
Cover the blender – blend until very smooth, from low speed to medium speed (I use a Vitamix.) Blend for 1 minute. Scrape down the sides with a rubber spatula and blend one more minute.
Pour the filling into the cooked crust. Place the cake into the larger pan with 2 inch high sides. Pour the boiling water into the pan, careful not to get any into the cheesecake, place in the middle of the oven.
Bake for cheesecake one hour, then turn the heat off.
After 10 minutes, crack the oven door open half way, and let the cake settle for 20 minutes. Should feel firm, with a slight golden color.
Remove cake to a wire rack to cool completely. Refrigerate until cold, covered with plastic wrap (I add a layer of waxed paper first.)