Bring 1/2 cup water and butter to a boil. Add flour; keep stirring until ball forms. Remove from heat and add eggs, one at a time. Take 1/2 the mixture and spread very thinly on lightly greased pizza pan. You can almost see the pan in places; reach as near to the edge of the pan as possible. Take other half and drop puffs all around edge. Bake 1/2 to 3/4 of an hour at 350°F. Move rack up so as not to burn. Do not open door while baking. Mix vanilla pudding powder with cold milk, as directed, until thick. Add sour cream. Bring berries and sugar slowly to a boil. Mix cornstarch with 1/2 cup water; add to berry mixture. When thickened, let cool and spread over pudding mixture. Top with Dream Whip.