With only two additional ingredients, you can have your fave fall beverage in Rice Krispie Treat form! These Pumpkin Spice Latte Rice Krispie Treats are as easy as traditional RKTs, but fall-ified! And everything is better when it's fall-ified!
In a large pot or stock pot over medium heat, melt the butter.
Add marshmallows, stirring until melted and puffy.
Add vanilla, instant coffee, and pumpkin pie spice, stirring until combined.
Remove from heat, and stir in Rice Krispies cereal.
Press into the bottom of a buttered 9x13-inch pan.
Allow to set (about 5 minutes), and cut into bars.