Preheat oven to 350 degrees
Using a flour based pam spray, spray a 9x13 baking dish then set aside
In a stand mixer or a large bowl with a hand mixer; mix the cake mix,
water, canola oil and eggs together until combined
Pour batter into the prepared baking dish
Bake for 28-35 minutes; or until a toothpick or knife comes out clean
Use any utensil with a rounded end to poke holes in the cake
Set aside to cool down
While the cake is cooling chop up the blackberries and strawberries, set aside
Once the cake is cooled; grab a squeeze bottle and pipe in the strawberry jam into the holes
Place the cake in the fridge for 5 minutes (That way when you begin to frost the cake your jam won’t smear!!)
Frost the top with the cool whip until cake is covered; top the cake off with your berries
Cut to serve and enjoy!!!