Double Chocolate Brownies Ala Weight Watchers

• 16 equal squares
• 2 eggs
• 2 cake with nonstick (pan)
• 50 gr sugar
• 45 gr sifted cake flour
• 30 ml coffee liqueur
• 30 gr semisweet chocolate chips
• 16 gr at a time
• 16 ml water
• 14 gr walnuts (chopped)