Brownies (my own)

3 sqs unsweetened choc
100 gr bittersweet choc
1 tbsp cocoa
150 grams butter
2 cups sugar
3 eggs
2 tsp vanilla
1 cup flour
melt chocolates and butter. beat eggs, add sugar. then add choc mixture and then rest 350 overn in 13x9" pan for about 20-25 minutes. don't overbake.