Preheat your oven to 350ᐤ. In a mixing bowl, cream the butter and sugar together for 3-4 minutes until the mixture becomes lighter and fluffier. Add the egg and whisk to incorporate, then add the molasses to incorporate further. Set aside and begin work on the dry ingredients.
In a separate mixing bowl, combine the flour, cinnamon, ginger, baking powder, salt, nutmeg, and allspice. Then add the dry ingredients to the bowl of the wet ingredients and stir just to combine.
Take about 3 tablespoons of the mixture and flatten between your hands (or on your lightly floured work surface), then spoon 2 teaspoons of the Fluff on top. Cover with another 3 tablespoons of the gingerbread mixture then enclose and shape into a loose ball. Add the stuffed ball to a parchment lined baking sheet and gently pat down to shape into a large cookie. Top with a sprinkling of red and green sugar, then repeat until all of the cookies have been stuffed and formed. Bake for 11- 12 minutes, then remove.