Preheat your oven to 335F (170C) and line one eight-inch pan with parchment paper Grease the sides and set aside.
Cut the cherries in half or quarters, then place them in a bowl over a paper towel. Gently swirl the bowl around to remove access liquid.
Over the stove, on medium-low heat, melt the butter, dark chopped chocolate, and water. Mix in the cocoa powder.
Add the sugar, then whisk in the eggs.
Mix the flour, salt, and baking powder in a separate bowl, then fold them into the cocoa/eggs to the mixture.
Fold in the chopped chocolate and sliced cherries.
Evenly spread the mixture into the prepared pan and bake for 27-28 minutes over the middle shelf. The brownies are ready when a toothpick comes out with a few moist crumbs.
Allow cooling in the pan completely before inverting and slicing.
Recipe notes: