Preheat your oven to 350°F (175°C).
Roast the pitted cherries on a baking sheet for 15 minutes.
In a bowl, mix together the melted butter and sugar until well combined.
Add eggs and vanilla extract, mixing until fully incorporated.
In another bowl, whisk together the flour, cocoa powder, baking powder, and salt.
Gradually fold the dry mixture into the wet ingredients until just combined.
Gently fold in the roasted cherries.
Pour the batter into a greased 9x9-inch baking pan.
Bake for 25-30 minutes or until a toothpick comes out with a few moist crumbs.
Allow to cool in the pan before cutting into squares.
