Sprinkle the powdered gelatin over the cold water in a small bowl to bloom. Stir, then let it sit for 5 minutes.
3 Tablespoons cold water, 1 envelope unflavored gelatin
Heat the cream, milk, and sugar in a large saucepan over medium heat. Cook, stirring frequently, until steaming and hot, around 140° F on a candy thermometer. Be careful not to let it come to a boil.
1 ¼ cups whole milk, 1 ¾ cups heavy cream, ½ cup granulated sugar
Remove the saucepan from the heat and stir in the gelatin and vanilla, stirring or whisking until smooth and the gelatin is completely dissolved.
2 teaspoons vanilla bean paste
Prepare a silicon chocolate mold, small round bowls, muffin cups, or mugs with rounded bottoms by placing one slice of kiwi in each of them. Divide the panna cotta mixture evenly between them, pouring it directly over the kiwi. Chill in the fridge for at least 6 hours or overnight.
kiwi slices
When ready to serve, unmold onto serving plates. Place half of a blueberry in the center of each kiwi slice, then pour raspberry sauce around the edges of the "eyeball" before serving.
blueberries