Two-Melon Terrine

We pursued the idea of using low-methoxyl pectin to create a fruit and vegetable adhesive that would allow us to create entirely edible terrines that were held together with an almost invisible but flavorful glue. This technique was the result of that exploration. First, we make fruit-flavored solutions with 0.5 percent calcium lactate or calcium gluconate. The choice of one over the other is based on taste. Calcium lactate is derived from lactose and has a slightly acidic taste. Calcium gluconate is derived from glucose and tastes slightly sweet. Calcium lactate has slightly more available calcium than calcium gluconate, although not enough to make a difference in most applications. You will sometimes find blended calcium under the label calcium lactate-gluconate. Then we impregnate the fruit with the calcium by vacuum sealing them together. It takes about five minutes for the calcium to be absorbed by the fruit, after which time we open the vacuum bag and pat the fruit dry. Next we dissolve 3 percent pectin in water at 203°F (95°C) to hydrate it, then let it cool. Once the pectin is cool, we brush it on one piece of the calcium-infused fruit and lay another piece on top. Then we vacuum seal the fruit to compress it together and let it rest in the refrigerator overnight. The following morning when we cut open the bag, we will find that the fruit has been sealed together with a pectin gel. The pectin gel is soft and seamless in the preparation. The resulting presentation is as beautiful as it is delicious. We enjoy the terrine sliced and served with seared scallops and crumbled blue cheese on hot days, and served warm with crispy soft-shell crabs on cool evenings. Even slicing and topping it with thinly shaved prosciutto is an elegant preparation.