- First, make the dough. In a glass bowl mix yeast, warm water, warm milk and 30g of the sugar (2 tbsp). Let it rest for 15 min or until you see bubbles on the surface.
- In a stand mixer fitted with the hook attachment, mix flour with sugar, anise seeds if using and salt on low speed until combined.
- Add in the egg, vanilla extract and oil to the milk mixture. Pour the milk mixture into the flour mixture. Mix everything together on low speed until combined
- Knead until the dough starts to pull away from the sides of the bowl and forms a ball around the hook. Around 15 minutes, the dough is ready when you can stretch a piece of dough between your fingers and see light through it without it breaking. This means the gluten has developed enough. If your dough breaks, knead for a few more minutes and try again.
- Transfer the dough to a large lightly-oiled bowl and cover the bowl with a dish towel or plastic wrap. Let rise in a warm place until the dough has doubled in size, about 1 hour.
- For the filling: In a medium bowl, add the softened butter, brown and white sugar, and cinnamon. Use a silicone spatula to mix together until it makes a paste. Set aside.
- Once the dough has risen turn it onto a well-floured surface. Use a rolling pin to roll it into a 30 cm long by 45 wide rectangle, with the wider side closest to you. Using a silicone spatula, spread the filling all the way to the edges of the dough.
- From the wide side closest to you, roll the dough into a tight log. Press the dough along the outside seam to seal everything together. Use a very sharp knife dental floss to cut the dough into 12 even rolls. Place the rolls in a 22 x 33 cm pan lined with baking paper. Cover the pan with a kitchen towel or plastic wrap and allow to rise in a warm place until doubled in size, about 1 hr.
- Preheat the oven to 180C. Remove the towel or plastic wrap and brush the rolls with egg wash (a mix of egg and milk). Bake the rolls until they are golden brown, about 30 minutes. Place the pan on a cooling rack to cool slightly, about 10 minutes.
- If you are making the vanilla glaze, mix the ingredients and pour over the cooled rolls to create a think layer. If you are making the sugar dusted rolls brush with melted butter and sprinkle sugar all over them.