Mix lukewarm water, sugar and instant yeast together, let sit until liquid is bubbly (several minutes)
Mix liquid yeast mixture and remaining dough ingredients in stand mixer with dough hook, until dough is mixed well and smooth.
Remove dough from mixing bowl and place in a greased bowl, cover dough with clean dish towel or saran wrap until doubled in size.
Remove dough from greased bowl, the dough will deflate when handled, and divide into 8 pieces. Shape each piece into a ball and place onto a cooking sheet covered in parchment paper or greased lightly.
Cover and let the dough balls rise for approximately 1 more hour or until almost doubled in size.
Brush melted butter over each bun and sprinkle with sesame seeds or poppy seeds.
Place buns in preheated oven at 375 degrees and bake for approximately 15 minutes, or until lightly, golden brown.
Cool buns on a baking rack, before cutting in half to use for burgers.
