Toss the fruit together with the brown sugar, cornstarch and lemon juice.
Place in a 9 inch square baking pan.
For the topping, mix the dry ingredients together and add melted butter until just moistened. Sprinkle on top of the fruit mixture. Bake for 1 hour or until the fruit filling has bubbled up and crisp is golden brown.
Serve warm with whipped cream or vanilla ice cream.
Recipe by Simple Local Life at https://www.simplelocallife.com/blueberry-apple-crisp-plant-to-plate/