PREPARATION
Preheat the oven to 350 degrees F and grease a 9×13-inch baking pan.
In a large bowl, combine cake mix, flour, and jello powder and sift to combine. Add egg, oil, water, vanilla and 1 cup of strawberry puree and mix until smooth.
Transfer the dough to the prepared baking pan and bake for 35-40 minutes or until a toothpick inserted comes out clean. Wait for the cake to cool completely while preparing the cream.
Cream: In a large bowl, mix cream cheese butter and strawberry puree until smooth. Gradually add erythritol until icing reaches desired thickness. Refrigerate until cake is ready to frost.
