In a mixing bowl whisk together the yeast, light brown sugar and warm milk (heat the milk to 105 degrees F)
Attach the dough hook to the mixer
Add in the two eggs, flour and salt and mix on medium speed until the dough starts to come together
Continue kneading the dough in the mixer while adding the 4 tbsp of cubed butter
Knead the dough until it forms into a ball and becomes smooth
Remove the dough from the mixing bowl and shape into an 8 inch square
Wrap the dough and refrigerate for 1 hour
Butter Block:
While the dough is resting, place the butter in between two pieces of parchment paper and using a rolling pin beat the butter until it is pliable and then roll it out into an 8 inch square
Wrap the dough with plastic wrap and refrigerate the butter block until ready to use
Dough Lamination:
Remove the butter block from the refrigerator and allow it to sit out for 10 minutes to soften
Place the dough on a lightly floured surface and roll the dough out to a 10x16 inch rectangle
Place the butter block in the center of the rectangle
Fold the dough into thirds over the butter block (a letter fold)
Seal the edges of the dough and then roll the dough into a 10x16 inch rectangle
Turn the dough 90 degrees, roll the dough into a 10x16 inch rectangle and fold in thirds
Tightly wrap the dough and refrigerate it for 30 minutes
Repeat this step three times allowing the dough to rest 30 minutes in between each (90 degree turn, roll into 10x16 inch rectangle and fold in thirds)
After the final fold, tightly wrap the dough and place in the refrigerator for 1 hour or overnight
Assembly:
Preheat oven to 350 degrees F
Brush 12 large giant muffin pan or 18 regular muffin pan with melted butter
Sprinkle the sides and bottom of the muffin pan with cinnamon sugar
In a medium bowl, mix together the Cinnamon Sugar Filling
Whisk together the softened butter, granulated sugar, light brown sugar and cinnamon until it becomes a paste
Remove the dough from the refrigerator and allow it to rest at room temperature for 10-15 minutes
Place the dough on a lightly floured surface and roll the dough into a 18x12 inch rectangle
Spread the Cinnamon Sugar Filling to cover the dough completely
Along the 18 inch side, tightly roll the dough into a log
Slice the log into 12 equal portions and place in the prepared muffin pan
Cover the dough with plastic wrap for about 30 minutes or until the dough begins to rise
Remove the plastic wrap and place the pan in the oven and bake for 15-20 minutes or until light golden in color
Remove the buns from the oven and allow them to cool before removing from the pan
Once the Morning Buns are out of the pan, brush them with melted butter and sprinkle with cinnamon sugar