Bowl of Tomatoes, Melons, and Homemade Yoghurt in Cantaloupe Melon Broth
Preheat the oven to 375ºF. Cut the cantaloupes in half and remove the seeds. Place cantaloupes cut-side up on a baking sheet and cook in the oven for 3-3½ hours, or until the cantaloupe flesh is very soft and has started to caramelize. Remove the cantaloupes from the oven and scoop the flesh from the skins into a bowl. Squeeze the cantaloupe through your fingers. Line a colander with 3 layers of cheesecloth and set over a bowl. Place the cantaloupe into the colander and set in the refrigerator for 2-3 hours, until all the liquid has drained. Reserve the liquid for the cantaloupe broth.
Add the salt, pepper and sugar to the tomatoes and marinate for 4 hours then pulse briefly in food processor with vodka. Line a colander with 3 layers of cheesecloth and place over a bowl. Pour the tomatoes into the colander and set in the refrigerator overnight, until all the liquid is drained.
In a small pot, bring the milk and cream to a boil. Cool to the mixture 43°C and whisk in yoghurt. Transfer the contents to a sterilized jar and place in a thermal circulator for 12-14 hours at 43°C.
In a narrow container or bowl, use an immersion blender to mix all the ingredients until they foam at the top.
Seal the cantaloupe slices in Cryovac bags at the highest possible setting. Remove and cut into 1½-inch by 1½-inch pieces. In separate bowls, season the tomatoes and cucumber with salt, pepper and white balsamic; let marinate for 5 minutes.
Arrange the tomatoes (1-2 slices of each variety) with the cantaloupe and cucumber balls in individual serving bowls. Sprinkle generously with basil and purslane. Spoon over some Cantaloupe Broth, and carefully top the salads with 3-4 spoonfuls of Yoghurt Broth.