Prepare a Bain-Marie by boiling 1/2 cup of water in a small pot. Place a large heatproof bowl over the pot.

In the heatproof bowl, combine the butter and marshmallows. Whisk continuously until you achieve a smooth paste, about 2-4 minutes.

Using oven mitts, remove the bowl from the pot. Add salt and red food colouring, whisk together.

In a large mixing bowl, add the Rice Bubbles. Pour the marshmallow mixture over them and mix thoroughly to coat.

Oil your hands and shape the mixture into oval shapes. Use a butter knife to create a dent in each and use a toothpick for veins with food colouring. Store in an airtight container for up to a week.