Mix berries, sugar and corn starch in a large bowl. Add water, lemon juice and almond extract. Pour mixture into a greased 8-inch square baking dish.
Combine butter, brown sugar, quick oats, flour and cinnamon in a medium sized bowl with a pastry blender until butter is in small pieces. Sprinkle over top of berries.
Bake for 45 minutes until fruit is bubbly and topping is browned. Serve warm or at room temperature. Delicious with a scoop of vanilla ice cream.
