I love dense heavy cakes and brownies (no sponges for moi!). This recipe is the best one I have encountered to date and I am keeping it.
200g dark baking chocolate
200g unsalted butter
1 teaspoon vanilla extract
1 heaping tablespoon flour
nuts, bananas (optional toppings)
Melt chocolate and butter together. Mix into mixture sugar till well combined, then vanilla extract and eggs one at a time. Do not overmix. Stir in flour. Bake in a lined 9-inch pan at 200 deg C for 25 minutes.