Simply Delicious Strawberry Cake

white cake mix

box strawberry flavored instant gelatin

package frozen strawberries in syrup, (thawed and pureed (or 1 1/2 cups fresh strawberries pureed if you want less sugar))

large eggs

vegetable oil

water

butter, (softened)

package cream cheese, (softened)

frozen strawberries in syrup, (thawed and pureed (or 1/4 cup fresh strawberries pureed for less sugar))

vanilla extract

powdered sugar