Easiest Blueberry Crumble

Ingredients

• 4 cups blueberries, fresh or frozen that have been gently warmed to room temperature 
• ½ cup white sugar 
• 1 teaspoon ground cinnamon 
• 1 package yellow cake mix 
• ½ cup butter 

Directions

• Mix blueberries, sugar, and cinnamon.
• Spread evenly in a 9 x 13 inch pan.
• Cut butter into cake mix by grating cold butter into mix and combining.
• Cover blueberry mixture with cake mix.
• Bake until the top is light golden brown, about 30 minutes.