Place one cup of raisins (or the add-in of your choice) in a bowl. Fill the bowl with hot water and let it sit for ten minutes.
Prepare the dough: In the bowl of your stand mixer, whisk together the warm milk, yeast, and sugar. Cover and let sit for five minutes until it becomes foamy. (See notes if you do not own a stand mixer)
Add the eggs, flour, cinnamon, ground nutmeg, and salt into the mixer bowl. Using the dough hook attachment, mix on low speed for one minute. Scrape down the sides of the bowl with a spatula. Then, knead on high speed until you see no more patches of flour.
Now, add the butter a little at a time. Continue mixing on medium speed for about ten minutes. The dough should come together. If it does not, then add ¼ cup of flour and keep kneading until the dough comes together.
Drain the raisins (or other add-ins) and add it to the dough. Knead on low for about one minute until they are incorporated and evenly distributed.
First Rise: Place the dough in a large greased bowl and cover. Let rise in a warm place for about two hours or until doubled in size.
Shape: Once the dough has doubled, place it on a lightly floured work surface. Divide the dough into 12 equal pieces. It doesn't have to be perfect! Take each piece and shape it into a ball. Then, place the shaped dough ball into a greased baking dish.
Second Rise: Cover the shaped dough balls and let rise in a warm spot for one hour until doubled.
Preheat the Oven: Preheat the oven to 350°F.
Add The Cross: Whisk the cross ingredients together. You want a thick flour and water paste that will pipe easily. If it is too thick, add another tablespoon of water. Place the paste into a small piping bag (or a ziplock bag with the corner cut off). Pipe a line down the center of each row of buns, then pipe it in the other direction to create crosses.
Bake: Bake the buns for 20-25 minutes or until golden brown. If the tops are browning too quickly, loosely cover the baking dish with aluminum foil to prevent tops of the buns from getting too dark. Let them cool on a cooling rack.
Icing: While the buns are cooling down, whisk the icing ingredients together. Then, brush the icing on the buns once they are ready to serve.
Video
Notes
Check out my post for step-by-step photos and a short video. They are there to help you out.