Begin by preheating your oven to 350 degrees F.

Spray an 8x8 baking pan with cooking spray. Set aside.

Create a double boiler by placing a large heatproof bowl over a pan of simmering water. (The bottom of the bowl should not touch the water.)

Add the chocolate and butter to the bowl and melt. Remove from the heat and whisk in the sugar and cocoa powder.

Whisk in the vanilla extract and eggs, one at a time, beating after each addition.

Stir in the flour and salt.

Pour the brownie batter into the prepared pan and level with a spatula.

Place spoonfuls of jam evenly across the top of the brownie batter. Use a toothpick or wooden skewer to swirl the jam into the batter.

Bake for 35 minutes or until a toothpick inserted near the center comes out clean.

Remove from the oven and allow to cool before serving.