Add the cream cheese to a stand mixer along with vanilla extract and add 1 teaspoon of SweetLeaf® Liquid Stevia Vanilla Crème Sweet Drops®. Blend until smooth. Blend in the sunbutter and salt until combined. Scrape down the sides of the mixing bowl and blend in the butter. Taste and adjust stevia, if needed. Gently stir in the chocolate chips. Makes 2 cups. Keep refrigerated.