In a bowl combine everything except for icing. It will form a cookie dough-like texture.
Line an 8x4 loaf pan with parchment. Press the mixture into the pan with your hands. You may need to put a little water on your hands so it doesn’t stick.
Mix together icing and into a small zip lock bag. Push it to the corner and snip just the tip off - this is your icing bag.
Drizzle it over top and serve .
Refrigerate for 2 hours before cutting and serving. Store leftovers wrapped up in the fridge. These can be kept up to one week.