Preheat the oven to 350 degrees. Stir the sugar into the frozen berries. In a small bowl, stir a little water into the cornstarch until it forms a paste, then stir into the berry mixture. Spread the mixture into a greased 9x13 inch pan. In another small bowl, use your fingers to crumble the oats, almonds and butter together until it resembles small peas, then spread evenly over the berry mixture. Bake 30-40 minutes or until browned, bubbly and heated through.

Serve : 6

Ready in : 45 minutes