Step 1

In large bowl, beat cream cheese and erythritol until smooth. Add sour cream, vanilla, and eggs and gently fold until combined.

Step 2

Pour batter into 7-inch springform pan. Gently shake or tap pan on counter to remove air bubbles and level batter. Cover top of pan with tinfoil. Pour 2 cups of water into Instant Pot and place steam rack in pot.

Step 3

Carefully lower pan into pot. Press the Cake button and press the Adjust button to set heat to More. Set time for 40 minutes. When timer beeps, allow a full natural release. Using sling, carefully lift pan from Instant Pot and allow to cool completely before refrigerating.

Step 4

Place strawberries and blackberries on top of cheesecake and serve.