Whisper it, but my favourite home bake brownies have long been those Betty Crocker ones that you make from a box, because I have never been able to find a recipe that matches their fudginess.
1. Preheat oven to 170°C/325°F (Gas 3).
2. Break up the chocolate and place the chocolate and butter in a heat proof bowl over a saucepan of simmering water without letting the base of the bowl touch the water. Leave until melted and smooth, stirring occasionally.
3. Remove from heat. Add the sugar and stir until well incorporated. Add the flour and stir until well incorporated. Beat the eggs in a separate bowl then finally stir in the eggs to the chocolate mixture and mix until thick and smooth.
4. Spoon the mixture into the prepared baking tray and bake in preheated oven for about 30-35 minutes, or until flaky on the top but still soft in the centre. Be careful not to overcook otherwise the edges will become hard and crunchy. Leave to cool completely before cutting into squares (or don't, and dive in whilst they are still slightly warm and eat with vanilla ice cream on a Sunday night whilst watching Mad Men...!).