Preheat oven to 350 degrees F. Lightly grease 9 by 13 cake pan and line bottom with parchment paper.
In a large bowl, combine cake mix and
gelatin. Add pureed strawberries, eggs,
oil, and water. Beat on medium speed with
an electric mixer until smooth. Pour into
Bake for 30 to 40 minutes
or until a wooden pick inserted in the center of the cake comes out clean.
Let cake cool in pans for 10 minutes. Remove from pan and remove parchment paper. Cool on wire rack. Refrigerate 2 to 4 hours.