Preheat oven to 180°C and line a baking dish with parchment paper. I usually use a brownie tin. You could of course use any other baking dish, like a 13x9”.
Put all ingredients into a bowl and quickly kneed into a dough. I love using my KitchenAid for this, but you can do this by hand as well.
Press the dough into the prepared baking dish. Use the back of a spoon or the bottom of a glass to smooth out the top.
Bake ca. 25-30 minutes in the middle of the oven.
Let cool completely and cut into pieces.