Preheat oven to 350 degrees F. Spray an 8×8 pan with nonstick spray or line with foil. Set aside. (I used a glass baking dish and lined with parchment paper.)
Mix & Bake: In a large bowl, mix strawberry cake mix, eggs, oil, and vanilla extract. Press into the prepared pan. Bake for 18-22 minutes, until just done. Let cool completely.
In a small bowl, whisk together powdered sugar, strawberry jam, cream cheese (if using), and milk. Spread over the cooled strawberry brownies.

PREP TIME & NUTRITION:
Prep Time: 5 minutes, Cook Time: 20 minutes, Total Time: 25 minutes, Servings: 16, Calories: 173, Net Carbs: 31g, Fats: 5g, Protein: 1g