Step 1: Activate the Yeast: In a small bowl, combine the warm water and 1 teaspoon of sugar. Sprinkle the active dry yeast on top and let it sit for about 5 to 10 minutes until it becomes foamy.
Step 2: Mix Dry Ingredients: In a large mixing bowl, whisk together the all-purpose flour, kosher salt, and 3 tablespoons of sugar until well combined.
Step 3: Combine Wet Ingredients: In a separate bowl, mix the buttermilk, one egg, and softened butter. Once the yeast has activated, add it to the wet mixture.
Step 4: Combine Wet and Dry Ingredients: Pour the wet ingredients into the bowl with the dry ingredients. Using a rubber spatula, gently fold the mixture until a soft dough forms.
Step 5: Knead the Dough: Turn the dough out onto a floured work surface. Knead for about 5 to 7 minutes, until the dough is smooth and elastic.
Step 6: First Rise: Place the kneaded dough in a lightly greased bowl, cover with a kitchen towel, and let it rise in a warm place until doubled in size, about 1 to 1.5 hours.
Step 7: Shape the Rolls: Once risen, punch down the dough and turn it out onto a floured surface. Divide the dough into 12 equal pieces. Shape each piece into a ball and place them on a greased baking sheet.
Step 8: Second Rise: Cover the shaped rolls with the kitchen towel again and let them rise for another 30 to 45 minutes, until puffy.
Step 9: Preheat the Oven: While the rolls are rising, preheat your oven to 375°F (190°C).
Step 10: Prepare the Herb Mixture: In a small bowl, mix together the chopped parsley, rosemary, garlic powder, and 1/4 teaspoon kosher salt.
Step 11: Brush and Sprinkle: Beat the second egg and brush it over the tops of the rolls. Then, sprinkle the herb mixture evenly over the rolls.
Step 12: Bake the Rolls: Bake in the preheated oven for 15 to 20 minutes or until golden brown. Brush the tops with melted unsalted butter for a glossy finish.
Step 13: Cool and Serve: Allow the rolls to cool slightly on a wire rack before serving. Enjoy them warm or at room temperature!