Spray a 10-inch cast-iron skillet with cooking spray.
Gently punch down Sweet Roll Dough. On a lightly floured surface, roll dough into a 14x10-inch rectangle. Spread butter onto dough.
In a small bowl, combine walnuts, ½ cup honey, and cinnamon. Gently spread over butter. Starting with one long side, roll up dough, jelly-roll style; pinch seam to seal. Slice into 8 or 9 rolls. Place rolls in prepared skillet. Cover and let rise in a warm, draft-free place (75°) until doubled in size, about 45 minutes.
Preheat oven to 350°. Bake, uncovered, until golden brown, about 30 minutes.
In a small bowl, stir together 1 cup confectioners’ sugar, 2 tablespoons buttermilk, and remaining ¼ cup honey until smooth. Brush onto hot rolls. Let cool in skillet for 30 minutes.
In a medium bowl, whisk together remaining 2 cups confectioners’ sugar and remaining 3 tablespoons buttermilk. Drizzle over warm rolls.
Recipe by Southern Cast Iron at https://southerncastiron.com/honey-nut-sweet-rolls/