black and blueberry crumble

My friend Deon dropped this by one evening as a thank you for my husband going to scout camp.  We saved it until the morning and when my husband returned the family enjoyed it together.  This crumble was a big hit and the consistency was perfect.  It was like dessert for breakfast.

black and blueberry crumble (my friend Deon)
filling
3 cups fruit
2 tablespoons lemon juice
1 tablespoon sugar, optional

crust and topping
1 1/3 cups brown sugar
1 cup flour
1 cup oats
1/2 cup melted butter
1/2 teaspoon cinnamon
1/2 teaspoon salt

Press crust into pan and bake for 12 minutes at 375 degrees.  Add fruit minus the juice.  Add topping and bake 12-15 minutes.  Should be golden and bubbly.