Grapefruit Marmalade with Smoked Salt
This marmalade is great stirred into a gin or bourbon cocktail. Use a mild smoked salt, such as Maldon, so as not to overpower the sweet and aromatic grapefruit. Slideshow: More Grapefruit Recipes
Pomona’s Universal Pectin (the brand favored by McCarthy for this recipe) is activated with calcium. A packet of calcium powder is included in each box—simply combine 1/4 teaspoon of the powder with 1/4 cup water to make the calcium water, which can be refrigerated for several months.