I made 2 batches of Rice Krispie Treats according to cereal box directions
Make the first one plain then add to a non stick sprayed spring form pan
and push to the edge with a spatula that you have sprayed also (and your fingers) to form your "crust"
To one of the batches add the food coloring of your choice to the melted marshmallow and then add the cereal
Add the orange batch to the center of pan and press it in evenly
Let it set then remove the spring form and you will have your Pie!
Slice into wedges...You can even top with whip cream!