Family Owned & Operated

Au Cao® is a family owned business in California. We use the best materials and elegant designs to elevate cooking and eating.

We’re inspired by a desire to simplify everyday chores, and our goal is to reduce tools and streamline tasks needed to prepare and share food.

Story Behind ButterBox™

Like millions of families, the kitchen is the epicenter of our home. Every meal is an opportunity for family bonding, storytelling, and special treats.


One of our favorite homemade treats is crepes, and one day while making them the idea for our first product was born! After dozens of design iterations tested by family, friends, and neighbors in California, we launched the ButterBox™. Since then we’ve won two international design awards and received our first United States Patent, and we are actively developing new tools to streamline kitchens everywhere!

Easy to Use + Food Safe Materials

Along with being a safe, clean, and fast way to butter a crepe pan (problem solved!), the ButterBox™ is great for buttering toast, corn, bbq, and hot skillets. 

The ButterBox™ keeps butter fresh, eliminates the need for messy butter dishes and knives, and enables easy control of the amount of butter used. It’s made of food-grade BPA-free plastic with a silicone heat guard, and is designed to go from the fridge to the countertop in seconds.