Pre-heat oven to 350.
Prepare the spring form pan: Line the bottom of a 9 inch spring form pan with parchment paper or spray with cooking spray. Then, from the outside, wrap aluminum foil around the bottom of the pan to prevent leaks.
Melt butter in microwave safe bowl.
4 tbsp salted butter, melted
Combine melted butter with graham cracker crumbs, almond flour and protein powder and stir with a fork until it forms large crumbles. Add more melted butter if needed
3/4 cup graham cracker crumbs, 1/2 cup almond flour, 1/2 cup protein powder
Press cookie mixture into the bottom of the springform pan and up the sides as far as possible. The mixture should not completely cover the sides.
In the mixer, beat the cream cheese until it is fluffy.
3 8-ounce packages Neufchatel or low fat cream cheese, softened
Gradually beat in the sweetened condensed milk until mixture is smooth.
1 14-ounce can sweetened condensed milk
Add eggs, then sourcream, Greek yogurt, and vanilla. mix until the batter is smooth.
12 tbsp egg whites, 1/2 cup non-fat Greek yogurt, 1/2 cup lite sour cream, 1 tbsp vanilla extract
Pour into prepared pan.
Bake for 55 minutes until edges are lightly browned and center is set but slightly soft.
Cool and chill completely before serving. We leave it out of the oven to cool for an hour and then chill it overnight covered with plastic wrap.
Garnish as desired, but we love it plain!