01 -
Set the oven to 350°F and line a square 9x9-inch pan with parchment paper.
02 -
Simmer raspberries, lemon juice, and sugar on medium heat for about 5 minutes. Strain out seeds if you want.
03 -
Heat butter in a pot until melted. Take it off the heat and mix in salt, cocoa, and sugar.
04 -
Add vanilla to the pot. Stir in one egg at a time, beating well after each.
05 -
Gently fold in the flour and then blend in the chocolate chips without overmixing.
06 -
Pour the batter into the pan. Dollop the raspberry mixture on top and use a knife to swirl it around.
07 -
Bake for 25-30 minutes until the edges are firm but the middle is soft. Let them cool totally before cutting.