1/4 cup sugar
1 tbsp corn starch
1/4 tsp orange peel (finely shredded)
3/4 cup orange juice
2 tbsp butter
Combine sugar, cornstarch, and orange peel in a small saucepan.
Stir in orange juice and cook over medium heat until thickened and bubbly.
Cook and stir 2 minutes more.
Remove from heat, stir in butter, and serve hot.