Creme De Menthe Brownies

• 5 1/4 creme de menthe green
• 4 chocolate
• 4 eggs
• 1 squares
• 800 gr powdered sugar sifted
• 400 gr sugar
• 350 gr butter
• 130 gr chocolate morsels
• 130 gr flour
• 120 gr walnuts (finely chopped)