Preheat your oven to 175°C (350°F). Line a muffin tin with cupcake liners.
In a large bowl, whisk together the flour, sugar, cocoa powder, chopped chocolate, and salt.
In another bowl, whisk together the milk, melted butter, eggs, and vanilla extract.
Pour the wet ingredients into the dry and mix until just combined. Don’t overmix.
Divide the batter evenly between the cupcake liners, filling each about 2/3 full.
Gently press one pitted cherry into the center of each cupcake.
Bake for 18–20 minutes, or until a toothpick inserted into the center comes out clean.
Cool in the pan for 5 minutes, then transfer to a wire rack to cool completely.