Oatmeal-Coconut Sammies

For the cookies: Position a rack in the lower third of the oven and preheat the oven to 350 °F. Line two cookie sheets with parchment paper. Sift together the flour, baking soda, cinnamon, salt, allspice and cloves in a medium mixing bowl and set aside. Cream 4 sticks of butter and brown and granulated sugars in the bowl of a stand mixer fitted with a paddle attachment (or a large mixing bowl if using a hand-held mixer) on medium speed until light in color, 3 to 5 minutes. Add the eggs and 1 teaspoon vanilla, and beat until fluffy, 1 to 2 minutes. Mix in the oats until just combined. Add the dry ingredients in thirds until just combined, for no more than 2 minutes. Sprinkle in the toasted coconut and raisins and stir until just combined. Scoop the dough onto the prepared cookie sheets with a large ice cream scoop, leaving 1 inch between each cookie to ensure even baking. Lightly tap down each cookie with the palm of your hand and sprinkle with just a pinch of turbinado sugar. Bake for 8 to 10 minutes in the middle of the oven, rotating the sheet half way through the baking time for even doneness. For the filling: Cream 1 stick of butter on medium speed until light and fluffy, 2 to 3 minutes. Add 1 cup of the confectioners' sugar, milk and 1 teaspoon vanilla, and mix on low speed until smooth and creamy, 1 to 2 minutes. Add the second cup of sugar while mixing on low speed until the filling reaches the desired light and fluffy consistency, 2 to 3 minutes. To sandwich the cookies: Put a dollop of filling (about 1 tablespoon) on the bottom of one cookie and place the other cookie right side up on top. Repeat with the remaining cookies.