https://www.carlsjr.com/ My Rewards Members via their National Churro Shake Day Offer: Any Regular Size Hand-Scooped Ice Cream Shake for Free w/ Any $1+ Purchase when you log in to your account, add a regular size ice cream shake and another $1+ item to cart and redeem the coupon. Offer is also available in restaurant by loading the offer and scanning your member QR code at checkout.