FOOD: Which carbohydrate makes jam a gel?

Questions

books for the hip reader: the secret sharer??

booze names: 1 ounce of light rum and the juice of 1/2 lime, top with cola.?

booze names: 1 oz. gin, 1/2 oz. dry vermouth, 1/2 oz. sweet vermouth, 1/2 oz. orange juice?

booze names: 1/2 oz. light rum, 1/2 oz. dark rum, 1 oz. orange, lime, pineapple juice?

booze names: 2 oz. gin, juice of 1/2 lemon, 1 tsp sugar, pour over ice cubes.?