- Filling: Preheat oven to 400⁰F (200⁰C). In a small bowl, stir sugar with cornstarch and cinnamon. Place berries, apples, finely grated zest from lemon and 2 tsbp (30 mL) juice into 13 x 9-inch (3 L) baking dish. Gently stir in sugar mixture.
- Topping: In a measuring cup, stir milk with vinegar. Let stand 10 min. Meanwhile, in a large bowl, whisk flour with sugar, baking powder, bakign soda and salt; using fingers or pastry blender, cut in butter until crumbly and you see bits of butter.
- Stir in milk mixture just until blended (it will not be smooth). Using a large spoon, dollop evenly over fruit. Fruit may still be showing. Bake 30-35 min or until topping is golden and fruit is bubbling. Let stand 10 min before serving.
Cooking Tip: When cutting butter into flour mixture, you should be able to see small bits of butter, some as big as the size of peas.