Carrot Snack Cake

• 9 baking (square pan)
• 1 egg (slightly beaten)
• 1 cream cheese frosting see below
• 325 gr powdered sugar
• 180 ml orange juice
• 130 gr carrots (grated)
• 160 ml cream cheese
• 80 ml vegetable oil
• 65 gr nuts (chopped)
• 45 gr butter