Preheat oven to 350 degrees.
Melt 2 T butter in a heavy frying pan or 9 inch square pan.
Add brown sugar, then arrange apricot halves all over bottom of pan on top of brown sugar, placing cherry halves between.
Set aside while preparing cake.
Cream 1/3 c butter, sugar, cocoa, and cinnamon.
Add eggs, beaten very little, and whip vigorously.
Add flour and baking soda, sifted together, alternately with the milk.
Add vanilla and pour batter into pan over fruit.
Bake 35 - 40 minutes.
Turn out immediately.
Serve warm.