This recipe yields for a Mint Brownie. Here is the recipe

Ingredients: 14-g butter (melted), 170g brown sugar, 25g coca powder, 3 eggs, 150g plain flour, 1 tb dried mint leaves (grounded)
Garnishing: 50g pumpkin seeds

Method:
Combine melted butter and brown sugar into mixing bowl. Add in cocoa powder, mix well. Leave aside for 3 minutes.
Add in eggs, one at a time, mix well after each addition
Gently fold in floour and grounded mint leaves until form batter. Spread batter into small square paper cups, Sprinkle with pumpkin seeds on top.
Bake in preheated ove at 170c for 25 minutes until cooked.
I beat the butter and the sugar - perhaps I should melt it instead. It didn't say it got to be mixed using a mixer anyway. The texture is soft and light. I am surprised it rose w/o baking powder.