1. Preheat an oven to 190 C/170 C fan/Gas mark 5.
2. Grease a baking or roasting tin, then line with greaseproof paper, covering the base and sides.
3. Beat eggs and butter together in a bowl. This can be done with an electrical beater. This will take approximately 2 minutes, and the mixture should be gloopy in consistency. If you would like to add more fibre to your diet, using black beans in this brownie mix instead of butter is a great way to do so! Simply mix the drained black beans and eggs then use a hand blender to blend them together to a gloopy consistency.
4. Gradually add the Sowans’ mix into the bowl, constantly stirring and folding. Do this until the mixture is fully incorporated.
5. Transfer the mixture into the prepared tin, spreading it gently to the corners of the tin and levelling the top with a palette or wide knife.
6. Bake in a pre-heated oven for 40-45 minutes.
7. Remove from the oven and allow to cool in the tin before cutting into 24 squares.

Brownies will keep for up to 1 week in an airtight container.