Preheat the oven to 180℃ / 350℉. Line a baking sheet with baking paper, ensuring it folds over the edges. Secure with a steel baking clip. Note: Use the excess baking paper to lift the brownie out of the baking tin.
In a medium bowl, add chopped chocolate and butter. Microwave, with 30 second intervals in between, until fully melted.
Add the sugars and mix until well combined.
Add the eggs, one at a time and mix until well combined.
Add flour, cocoa powder and salt. Mix until there are no cocoa/flour pockets remaining. Pour into the lined baking tray and spread evenly.
Add dollops of the peanut butter and raspberry jam on top. Using a butter knife of mini angled spatula you can swirl them together. Bake for 20-25 minutes or until the edges are slightly crispy and the center is fudgey. Note: Big confident swirls are want you want but resist overdoing it.
Allow to cool (if you can resist) and slice into 9 equal squares. Enjoy!