1Preheat an oven to 375 degrees F (190 degrees C). Grease a 9x9-inch baking dish.
2Whisk the milk, oil, 1/3 cup sugar, and baking mix together in a bowl until no large lumps remain. Pour into the prepared baking dish. Whisk 2/3 cup sugar with the water in a clean bowl until mixed. Gently fold in the berries until evenly coated. Spread the berries over the baking mix batter.
3Bake in the preheated oven 45 minutes.
Footnotes
Cook's Notes
It might seem like a lot of water but when mixed with the berries and sugar, it turns into a syrup and once cooked, it basically turns into a jelly. If using canned or frozen sweetened fruit, omit the sugar and use juice instead of water.