Adapted from Epicurious
1 large orange, top and bottom trimmed flat (about 1/4 inch removed)
2 cups sugar, divided
1 1/2 cups water
Cut through peel from top to bottom to make 4 equal sized segments. Remove peel, including pith, from each quadrant. Cut each piece into 1/4 inch strips. Cook in a pot of boiling water for 15 minutes. Drain, rinse, then rinse again.
Bring 1 1/2 cups sugar and 1 1/2 cups water to a boil, stirring occasionally till sugar dissolves. Add peel and return to a boil. Simmer for about 45 minutes till peel is soft. Drain.
Toss peel in the remaining 1/2 cup sugar, separating strips. Transfer strips to a sheet of foil and let stand till coating is dry, 1-2 days. May freeze up to 2 months.