Use gel food coloring instead of liquid for a more vibrant green color. Add marshmallows just before serving to keep them fresh and soft. Do not refrigerate as moisture will make the coating sticky. Make up to 3 days ahead and store in an airtight container. Freeze without marshmallows for up to 6 weeks.
Keyword green snack mix, muddy buddies, no bake snack, Saint Patrick's Day Puppy Chow, St Patrick's Day treats