Prepare the Batter
Preheat your oven to 170°C (338°F) and line an 8x8-inch (20x20 cm) baking pan with parchment paper.
Mix the frozen cherries with brandy (if using) and set aside.
In a large bowl, whisk together flour, cocoa powder, baking powder, baking soda, salt, and brown sugar.
Add the yogurt, vegetable oil, milk, vinegar, and vanilla extract. Mix until well combined.
Gently fold in the cherries, then pour the batter into the prepared baking pan.
Bake the Cake
Bake for 50-60 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs.
Make the Toffee Sauce
In a microwave-safe bowl, melt butter and brown sugar for 1 minute, then stir well.
Add heavy cream and mix until smooth.
Assemble & Serve
Once the cake is baked, let it cool slightly. Poke holes all over the top using a skewer.
Pour the warm toffee sauce over the cake and let it soak for an hour.
Slice and enjoy your rich and fudgy Black Forest Dessert!
For best results, serve warm with whipped cream or vanilla ice cream. Enjoy!