- Combine 3 cups of flour, yeast, sugar, salt, warm milk, butter, Sriracha and egg in the bowl of a stand mixer. Beat on low speed and mix until flour is fully incorporated. Increase speed to medium and continue to mix for 1 minute. Add the remaining flour in ½ cup increments and mix on medium speed until dough forms into a large ball. Dough should be slightly sticky.
- Transfer dough to a butter greased mixing bowl and cover with a damp towel or plastic wrap. Allow to rise 20 minutes at room temperature.
- Gently punch dough down to deflate a few times. Use hands to pinch off pieces of dough and form into 20 balls. Place into a 9×13 parchment paper lined baking pan. Cover again with towel and allow rolls to rise an additional 20 minutes.
- Preheat oven to 375ºF. Stir together melted butter and Kikkoman Sriracha. Brush rolls with half of butter mixture. Bake rolls for 13-15 minutes or until golden on top and cooked through. Brush rolls with remaining butter mixture and serve immediately.