I have found a wonderful recipe for brownies using no flour or sugar. But it uses 200g of 100% dark chocolate. In America, they call this unsweetened chcolate or bitter chocolate and bars of it are readily available in supermarkets. Here, I could only find Willies 100g block in waitrose which cost £5. I did buy it and made half the recipe and it was fabulous, but there is no way I can justify the cost again. Sooooo.....any ideas where I can get similar cheaper?