Junior McKayla Mar’s favorite cultural food is “halo-halo,” a dessert from the Philippines. Layering shaved ice, condensed milk and a variety of toppings, halo-halo — which means “mix-mix” in Tagalog — is a refreshing dessert full of contrasting textures. “You can honestly put anything you want in it, but you’ll usually find ice cream, condensed milk, fruit, beans or jelly in it,”...