Blackberry Upside Down Cake

Yes, another upside down cake!  I'm on a roll.  I got the blackberries from a vacant lot next door to where I used to live up in North Surrey.  They're a bit seedy and they are not the greatest tasting blackberries ever despite how beautiful they were on the bush, but they just need a little extra help with some sugar and they're fine.  I made this cake two nights ago, once again using Betty Crackpot's Dinette Cake recipe.