Combine the soft butter, vanilla, pumpkin pie spice, half and half and 1 cups of the powdered sugar in a medium size bowl. Stir with a sturdy spatula or wooden spoon until well combined. Add the remaining powdered sugar and stir until nice and smooth. You want a smooth, spreadable icing. If it seems too thin, add a bit more powdered sugar. If it's too thick add more half and half, a few drops at a time.
See Café Tips above in the post for more detailed instructions and tips to ensure success.
If you prefer to use Metric measurements there is a button in each of our recipes, right above the word “Instructions”. Just click that button to toggle to grams, milliliters, etc. If you ever come across one of our recipes that doesn't have the Metric conversion (some of the older recipes may not), feel free to leave a comment and I will add it.
The yield for this recipe depends on what size you make the cookies. I make mine 1-1½ tablespoons (about 25g each) and get 20 cookies which will yield 10 sandwich cookies.