After 1 to 2 weeks (just use your own judgment; it may need a little more time for the lemon skins to marinate.)
You are going to put a saucepan with 8½ cups of filtered water. Bring to a rolling boil, then reduce heat
Measure out the 1½ cups of sugar; you are going to add the sugar to the simmering water, stirring as you add it and slowly will dissolve into the hot water, as it becomes simple syrup. Set aside to completely cool.
You are going to remove the lemon peels from the limoncello base (take the lemon peels out of liquor base and put aside to discard.) The lemon peels will have lost its yellow color and the liquor should be yellow color, transferring yellow color to the liquor.
Now you are going to filter the liquor with either coffee filters or cheesecloth and a fine strainer. (The cheesecloth may leave little bits of the cloth in the liquor when using to filter; better to use coffee filters. Or you may want to use a mesh filter)
Now you are going to infuse the lemon liquor with the cooled simple syrup; blending them together; stirring to be sure it's completely combined.
With a narrow funnel placed in the decorative jar, you are going to put the limoncello in and cork them up for future gift-giving or for the coming holiday season.
You want to keep them in the refrigerator or the freezer. You want to shake the bottle prior to opening; as it sits the simple syrup and the liquor sometimes separate, so to be sure that it's going to taste its best, shake or stir it up prior to serving it.
Hope you give this favored recipe a try; and please send me your pictures!!