The same day that you begin making the dough, place the dried fruit, liqueur, and water in a small pot over medium heat and bring the mixture to a boil. Reduce heat to low and simmer until the liquid is absorbed and the fruit has softened, about 8 to 12 minutes, stirring every 2 to 3 minutes. Remove from heat and allow to cool to room temperature, then cover and leave at room temperature overnight.
The same day that you begin making the dough, slice the clementines as instructed in this video: https://www.youtube.com/watch?v=aYjfNosujSk (this will allow you to create the twist shape later on). Bring the water, sugar, and honey to a boil in a small pot over medium high heat. Add the sliced mini clementines and reduce heat to low. Simmer for 1 hour, spooning off and discarding any foam that forms on top, and flipping the slices every 15 minutes. Remove from heat, and use tongs to remove the slices and place them on a wire rack to cool, with a paper towel underneath to catch any dripping syrup. Once they're warm and no longer super hot, form the twist shape and place them back on the rack to continue cooling and firming up overnight.
Cover with lightly greased foil, beeswrap, or plastic wrap and allow to rise at room temperature out of direct sunlight until the panettone dough dome rises over the top of the mold, about 2 to 3 hours. Preheat the oven to 375 degrees Fahrenheit during the last 30 minutes of proofing.
Place the panettone on a lipped baking sheet. Remove the foil/beeswrap/plastic wrap. Using a sharp paring knife, cut a 4-inch X into the top of the dough (this will help stabilize the rise in the oven while it bakes), and place the cold pat of butter on the center of the X. Place the pan in the lowest rack of the oven and bake for 30 minutes, then remove the pan from the oven, gently cover the top of the panettone with foil, place it back in the oven, and reduce the oven's temperature to 325 degrees Fahrenheit.
Continue baking until a thermometer inserted into the center of the panettone reads 190 degrees Fahrenheit (it's worth poking the end of the thermometer in at a few different angles and depths to make sure the bread is completely cooked through before removing it from the oven), about 1 hour to 1 hour and 15 minutes more. Remove the panettone from the oven and place on a wire rack to cool to room temperature.