Preheat oven to temperature required for an 8 x 8 pan. Spray the pan with non-stick cooking spray and set it aside.

Prepare boxed brownie mix according to directions on the back of the box, typically involving combining the mix with eggs, oil, and water until smooth and creamy.

Stir in the fresh raspberries into the brownie batter gently so as not to break them apart too much.

Drop raspberry jam in small dollops on top of the batter and swirl it into the mixture lightly.

Press additional raspberries into the top of the brownie batter before baking.

Bake according to the directions on the box until a toothpick inserted comes out clean. Allow to cool slightly before cutting into squares.