Fill the butter with the broken chocolate in a bowl and melt in a water bath, do not heat much so that the chocolate does not curl.
Grind the nuts in any way convenient for you, just do not grind it strongly in the pie pieces should be felt.
Beat eggs with sugar with a whisk or mixer until foamy.
Add cooled chocolate to the eggs and mix well.
Then pour cocoa, flour with baking powder and mix quickly.
Pour the dough into a mold covered with parchment, bake in a preheated oven to 180 degrees for 20-30 minutes. The shape is 20x20 in size, but you can take more.
Ready brownie should have a dense crust on top, and the middle is a bit wet, then the cake is completely ready and can be taken out of the mold.
Brownies with nuts are a delicious, delicate and most chocolate treat. Cooking such a pie is quite simple and quick; you can serve brownies with a scoop of ice cream, sprinkled with icing sugar or drizzled with chocolate icing. Not only children, but also adults are delighted with such a pie. For brownie, you can use any nuts, not only walnuts, the amount of chocolate depends on the degree of bitterness, you can also increase the amount of sugar if you really love it to be sweet.