Preheat oven to 180°C/350°F. Add flour, gingerbread spice, cinnamon, salt, and baking powder to a bowl and combine.
In another bowl, beat soft butter, cane sugar and egg for approx. 5 min. until smooth. Stir in applesauce.
Gradually add the dry ingredients and mix into a smooth dough.
Grease loaf pan and line with parchment paper. Transfer dough into loaf pan and bake at 180°C/350°F for approx. 50 - 60 min., or until a toothpick inserted into the center comes out clean.
Remove from oven and let cool completely. For the frosting, beat soft butter, confectioner's sugar, cream cheese, and vanilla extract until fluffy.
Unmold cake and spread the frosting on top. Dust with cinnamon. Enjoy!