Wash the oranges and pat dry.
Using a citrus twist peeler, make strips of the orange without getting any of the white pith. I use a bartender’s tool called a citrus twist peeler; it is not the same as a zester.
Place the orange strips into a pretty glass jar and cover with vodka. Shake and let this sit for 4-6 weeks in a dark cabinet. If you put it in the window, the pretty orange color of the strips will begin to fade. You can smell and tell if the extract is ready.
After about 3-4 months, I strain out the orange "twists." If they remain in the mixture too long, it can become bitter.
* You can also make lemon extract using lemon "twists." Follow the recipe for Orange Extract, substituting lemons for the oranges.