In a standing mixer with the dough hook attachment, add 1 1/2 cups warm water, two tablespoons granulated sugar, and one tablespoon yeast. Mix to combine.
Turn the mixer on slow and add 4 cups of all-purpose flour and 1 tsp fine sea salt. Mix until a shaggy dough forms.
Add 4 tbsp melted butter and turn the mixer on low to knead for a few minutes.
Remove the mixing bowl, cover with a clean kitchen towel and place in a warm spot for 2-3 hours until it doubles in size.
Remove the dough onto a lightly floured surface. Knead and roll the dough out, cutting it into 8 equal parts.
Roll each piece into a long snake shape.
Place the dough pieces on two light-metal colored pans lined with parchment paper and cover with plastic wrap. Allow them to rise for a second time for 45-60 minutes.
Preheat the oven to 375 degrees F.
Uncover the buns and place them into the oven. Bake for 22 minutes.
Remove and allow them to cool for a few minutes on the pan before removing and placing on a wire rack to finish cooling.