Zest and juice your orange. One medium navel orange should provide the 4 tablespoons of juice and the 2 tablespoons of zest that are needed. If you would like extra zest to decorate the top of the loaf, you will need a second orange.
Add the ground flax seed and orange juice to a small container. Stir to combine and set aside for 5 to 10 minutes to thicken.
Pre-heat the oven to 350 degrees F and prepare an 8x4 loaf pan by lining it with parchment paper.
Add the flour, baking powder, baking soda, ground cinnamon, ground all spice, and ground cloves to a small bowl. Whisk to combine and set the bowl aside.
Add the room temperature butter, mashed banana, cane sugar and brown sugar to a medium bowl. Using a handheld mixer, blend the ingredients together at medium-high speed until well combined - about 2 minutes.
Add the thickened flax mixture, vanilla extract, and orange zest to the banana mixture. Using the handheld mixer, blend the ingredients together at medium-high speed until well combined - about 30 seconds to 1 minute.
Add the dry ingredients to the wet ingredients. Using the handheld mixer, blend at medium-low speed until almost no more flour can be seen. Toss in the roughly chopped candied peel and fold it in until well incorporated. Try not to over mix.
Pour the batter into the prepared pan, make sure it is evenly spread out. Bake for 60 minutes or until a toothpick inserted in the center comes out clean.
Let the loaf rest in the pan for about 15 minutes before transferring it to a cooling rack.
Decorate the loaf with a little orange zest or extra candied peel. Slice and serve once it has cooled to room temperature.Store the loaf in an airtight container at room temperature.