Summery, Vegan, Dairy-free, Delicious. Sings, too.

Riddle: It's summer. Fourth of July weekend to be specific. You're assigned dessert. What do you bring to a party to feed seven grown-ups and seven kids, one of whom has a dairy allergy?
In my mind, only one answer: Cobbler.
But wait: Butter + Dairy Allergy = Not the Nicest Thing to Do
And: Cobbler - Butter = Not Much of a Cobbler.
Still, not an option. My…