Betty Crocker (1975)
1 pound medium carrots, cut into 1-inch slices
2 medium oranges, cut into eights and seed removed
2 cups water
4 cups sugar
Juice of 3 medium lemons (about 3/4 cup)
1 small piece gingerroot
1/2 teaspoon salt
Place half each of the carrots, oranges, and water in blender. Cover and blend on medium speed for 1 min. Repeat with remaining carrots, oranges, and water.
Heat carrot mixture, sugar, lemon juice, gingerroot and salt to boiling. Boil gently, stirring frequently, until mixture is thickened, 40 to 45 min; remove gingerroot.
Immediately ladle into hot sterilized glasses. Fill to within 1/4 inch of tops of glasses; seal. Invert glasses a few seconds; place upright to cool.
USDA Recommends a 10 min water bath.