Recipe information
Yield
Makes about 1 1/2 cups
Ingredients
1 large navel orange
2/3 cup sugar
1/2 cup kumquats, sliced
1/2 teaspoon crushed red pepper flakes
1/4 teaspoon coarsely ground black pepper
2 tablespoons fresh orange juice
Preparation
Step 1
Using a knife, remove peel from orange. Set orange aside. Cut white pith from peel. Place peel in a medium saucepan and add cold water to cover by 1". Bring to a boil; drain. Repeat 2 more times. Let cool slightly.
Step 2
Finely chop peel and reserved orange; place in a medium saucepan and add sugar, kumquats, both peppers, and 2 cups water. Bring to a boil, reduce heat, and simmer, stirring occasionally, until water is evaporated, 35–45 minutes. Let cool; mix in orange juice.
Step 3
DO AHEAD: Marmalade can be made 2 weeks ahead. Cover and chill.