It’s less complicated than it sounds.
Oleo-Saccahrum sounds like it belongs in a chemistry lab, but it’s a surprisingly uncomplicated ingredient.
What Is Oleo-Saccharum?

Credit: Will Dickey
Oleo-Saccharum is a homemade lemon oil made from lemon peels mixed with sugar.
Oleo-saccharum is most often used incocktails, but it can be used in a variety of recipes.
Does It Have Anything to Do With Oleo For Baking?

Credit: Will Dickey
The only thing they have in common is the Latin word for oil, oleo.
Shake the bowl occasionally to redistribute the sugar and draw out more oils.
The liquid that pools at the bottom of the peels the next day is the oleo-saccharum.
Does Making Oleo-Saccharum Require Special Tools?
Muddling the citrus and sugar together will encourage the citrus oils to seep out faster.
Can You Make Oleo-Saccharum With Any Citrus?
Oranges, grapefruit, and limes are all perfect candidates for making homemade oleo-saccharum.
It would be a great addition toSweet Teaor used in baking as part of a flavoredcake soak.