These matcha rice krispie treats are a fun and easy dessert that is perfect for any occasion. The treats are made with rice krispie cereal, marshmallows, and matcha powder, which gives them a beautiful green color and a subtle green tea flavor. To make the treats, simply melt butter and marshmallows in a saucepan. Mix in matcha powder and rice krispie cereal, and then press the mixture into a greased baking dish. Let the treats cool before cutting into squares and serving.