(from the beautiful "Home Made" by Yvette van Boven)
150g butter and some for greasing the tin
200g dark chocolate
1 sachet vanilla sugar or a tablespoon vanilla extract
2 teaspoons baking powder
1 pinch of salt
200g chocolate-coated raisins
Preheat the oven to 170°C. Line a 18x23cm baking tin with baking parchment or grease well with butter.
Melt butter and chocolate in a small saucepan over low heat. When melted, take away from the heat and let cool a little. In a bowl, beat sugar, vanilla and eggs with an electric hand mixer until pale and fluffy. Add the chocolate-butter-mixture und and mix until well combined. Sift in flour, baking powder and salt. Mix well. In the end, add the chocolate-coated raisins.
Pour your batter into the prepared tin and bake for about 25 minutes. If you insert a wooden skewer, there should not be any batter sticking to it. Let cool, then cut into squares.