Set up your stand mixer with the dough hook attachment.
Combine the milk and water in a small saucepan and heat over a low stove until lukewarm. (Don't overheat!)
¼ cup whole milk, ¼ cup water
Remove from heat and sprinkle yeast on top. Allow to activate for a few minutes.
1 teaspoon active dry yeast
Meanwhile, combine melted butter with white sugar and egg yolks, using a whisk to mix.
8 tablespoons unsalted butter, ¼ cup white sugar, 3 egg yolks
In the bowl of your stand mixer, combine the butter, egg, and sugar mixture with the water, milk, and yeast mixture. Stir on a low speed to combine.
While the mixer is still running, slowly add the bread flour and the salt. Continue to mix until dough comes together and pulls away from the sides of the bowl.
2 cups bread flour, ¼ teaspoon salt
Increase mixer speed to medium-high, and knead dough for 3-5 minutes. If you don't have a dough hook, you can knead by hand, but it will take longer.
Cover the dough, and let rise in a warm spot for one hour. After that hour, it should have roughly doubled in size. Gently punch down the dough, and divide it into 6 pieces.
Shape each piece of dough into spirals. To do so, make a long tube and then spiral from the inside out. (There are more specific tips, with photos, in the blog post above.) Place onto baking sheet lined with a silicone mat or parchment paper, leaving at least 2 inches between each roll.
Cover again, and allow to rise a second time, for one hour.
When rising time is almost done, preheat the oven to 375℉ / 190℃. Once the oven has preheated, brush the rolls with melted butter. Then cook them for 12-15 minutes. You want them to become a beautiful golden color without turning brown.
Remove from the oven, allow them to cool slightly, then dust with powdered sugar. Serve and enjoy!
¼ cup powdered sugar