Chef John's Pumpkin Cinnamon Rolls
1 (.25 ounce) package active dry yeast 1 cup confectioners' sugar 1 egg 1 teaspoon salt 1 teaspoon vegetable oil 2 cups all-purpose flour 2 tablespoons ground cinnamon 2 ¼ cups all-purpose flour, or as needed 5 tablespoons butter, melted ¼ cup butter, melted ¼ cup cream cheese, softened ¼ cup heavy cream ¼ cup milk, or as needed ¼ cup toasted pumpkin seeds, to garnish ¼ cup warm water (100 to 105 degrees F/38 to … ¼ cup white sugar ¼ teaspoon ground allspice ¼ teaspoon vanilla extract ½ cup pumpkin puree ½ teaspoon ground ginger ½ teaspoon vanilla extract ½ teaspoon white sugar ¾ cup packed brown sugar