Blueberry Dump Cake

1 Box yellow cake mix

4 Cups Fresh or Frozen blueberries

¼ Cup Brown sugar

1 Tsp. cinnamon

2 Tsp. vanilla

2 Sticks butter (melted)

Spray 9×13 pan and spread berries in the bottom. Mix together sugar, vanilla, and cinnamon and spread over berries. Shake dry cake mix over this and pour melted butter over cake mix. Do not stir. Bake 35-45 minutes till golden brown. Serve warm with vanilla ice cream.