Grandma Bonnie's Cinnamon Rolls

Ingredients (14)

• + 2 cups warm water add to pantry
• + 2 (.25 ounce) packages active dry yeast add to pantry
• + ½ cup white sugar, divided add to pantry
• + ¼ cup vegetable oil, or more as needed add to pantry
• ✓ 1 large egg
• + 2 teaspoons salt add to pantry
• + 6 ½ cups all-purpose flour, or more as needed add to pantry
• + ½ cup unsalted butter, melted add to pantry
• + ¼ cup ground cinnamon, or more to taste add to pantry
• + ½ cup chopped pecans, or to taste add to pantry
• + Topping: add to pantry
• + 1 cup powdered sugar add to pantry
• + ½ teaspoon vanilla extract add to pantry
• + 1 tablespoon milk, or more as needed add to pantry