It started when Aunt Sharon taught me learning from Margie, to add sugar-free orange Jello packet to a tub of unsweetened Greek yogurt. It tastes just like creamsicle.

After 5 years of that I started experimenting with other ones. Other flavors of Jello packets. 

When I didn't have any Jello on hand, I just looked for anything in my cabinet. Here's the varieties that have been great:

Honey + vanilla 

Honey + vanilla + Coconut extract