Chocolate Sour Cream Fudge Cake

• 9 pans greased (square)
• 6 to release air bubbles (inches)
• 3 eggs
• 5/8 dry ingredients
• 1/2 sour cream
• 500 gr brown sugar
• 250 gr all purpose flour
• 240 ml sour cream
• 240 gr coffee
• 130 gr bitter chocolate