ORANGE OIL (about 1 cup)

the grated zest of 3 oranges (about ¼ cup)

1 cup mild olive, walnut, peanut or other mild oil

1. Combine the orange zest and oil in a sterilized 8 to 10 ounce jar and let steep in the refrigerator for up to 4 days. Strain the oil through a dampened paper coffee filter (paper towels can taste of chemicals).  The oil can be kept, covered and refrigerated, for up to 1 week, no longer.

from Irma Rombauer, The Joy of Cooking