Instructions: Preheat oven to 325 degrees. .Place a pan of water on lowest rack or on oven floor.

Divide oven into thirds. Cut a cardboard or use 2 or 3 paper plates to form a base. Line that with aluminum foil. Spray sides and foil covered base with PAM or kosher oil spray. Can also use paper towel to grease lightly with oil. Beat cream cheese in large bowl,
alternately with the sugar, until light and fluffy. Scrape the bowl Add the 4 beaten eggs all at once .Mix until egg mixture has been absorbed.

(Over-mixing will cause it to fall, or to get a large crack in the center.)

Scrape the bowl.

Add potato starch. Mix until blended in.

Add vanilla and lemon juice.(if you add it earlier the eggs will curdle.) Do not over-mix. Scrape bowl. Add melted butter only until blended. Fold in the sour cream. Can also be stirred in on lowest speed. Pour into prepared pan. Bake at 325 for 1 hour, in the lowest 1/3rd of oven. Shut oven off and leave in oven for 1 hr 15 min. Remove from oven and let it sit out a room temp. 2 hours.

Refrigerate. Dont put plastic over it as it may sweat.

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