Blackberry Cake

2 cups blackberries
1 cup sour cream
1 cup sugar
1 egg
1 tsp. soda
3/4 tsp. cinnamon
1.5 cups flour

Preheat oven to 350 degrees. In a bowl, whisk together sour cream, sugar, and egg. In a separate bowl, mix together soda, cinnamon, and flour. Mix wet and dry ingredients to make a stiff batter. Add fruit and mix with spatula. Pour into greased 8x10 in pan or glass dish. Bake at 350 degrees for 30-40 minutes.