The light meringues and concentrated flavors of this dessert pair nicely with dessert wine with ample acidity yet enough sweetness to hold its own.
Bring milk and the water to a simmer in a straight-sided saute pan over medium heat. Reduce to medium-low, so liquid steams but does not bubble.
Whisk whites, salt, and cream of tartar with a mixer on medium-low until foamy. Add sugar, 1 tablespoon at a time, and whisk until sugar dissolves and soft peaks form. Gradually increase speed to medium-high, and whisk until stiff peaks form, 8 to 10 minutes.
Using a wet spoon, drop 3 tablespoon-size mounds of meringue into hot liquid. Poach for 2 minutes, then gently flip each, and poach until firm to the touch, about 1 1/2 minutes more. Use a slotted spoon to transfer meringues to a large plate. Repeat.
To serve, divide Rose Syrup among shallow bowls. Top each with 2 poached meringues. Grate nutmeg over top, and serve immediately.