Steph is multitalented! Also, works in the pub/general store in Smallville, and thus heard that there was a shipment and snagged a two-litre tub of it.

The forcing-Mel-to-eat-it bit, though, she really didn't think through.

"Ice cream for you," she informs Mel authoritatively. "And if you scream lots, it'll be the SPOON, TOO."