Place the lukewarm milk, 1 tablespoon of the sugar, and the yeast in a medium sized bowl, and stir to combine. Leave for 10-15 minutes, or until foamy.

In the bowl of a stand mixer fitted with the dough hook attachment, place the flour, salt, and remaining sugar, and mix briefly to combine.

Add the milk mixture, egg and vanilla to the dry ingredients, and mix on low for 2-3 minutes. Increase the speed of the mixer to medium, and mix for a further 5 minutes. Add the butter a little at a time, waiting until it is incorporated until adding the next piece. Mix for a further 7-10 minutes, until the dough is smooth and soft.

Cover the bowl with plastic wrap and place in a warm place until doubled in size, 45 minutes to an hour. Alternatively you can do the first rise overnight in the fridge.

Place the butter in a medium saucepan, and place over medium heat. Cook until the butter has melted, and then continue to cook, swirling the pan often, until the butter foams and turns golden brown and nutty - this should take 3-4 minutes. Transfer to a bowl, allow to cool slightly, then transfer the bowl to the freezer and chill the butter until solid. Remove from the freezer and bring to room temperature, stirring often, until soft and spreadable.

Line a quarter sheet pan or baking dish (9”x13” or 23cm x 33cm) with parchment paper. In a small bowl, combine the browned butter, brown sugar, cinnamon, flour, salt, and vanilla bean paste. Mix to combine.

Turn the dough out onto a lightly floured surface, and roll into a rectangle that is 24” x 16” (60cm x 40cm), squaring off the edges often as you roll. Spread with the brown butter filling mixture, ensuring the filling is spread evenly over the surface.

Starting with a long side, roll up into a tight spiral. Cut the log into two pieces and place them side by side on a sheet pan lined with parchment paper and lightly sprayed with cooking spray. Lightly cover the dough logs with plastic wrap, and transfer to the freezer for 20 minutes in order to firm up slightly (this helps give a neater cut). If you have chilled your dough overnight, you can skip this step if it feels like the rolls are going to hold together well.

Once the dough logs have chilled, remove from the fridge. Using a sharp knife, slice each log into 6 equal pieces (I like to use a ruler), and arrange on the prepared baking sheet or baking dish, evenly spacing between.

Lightly cover the pan with plastic wrap, and leave to rise for 45 minutes to an hour, or until puffy, and a small indentation is left when poked gently with your finger.