Christina Tosi spent nine years bootstrapping Milk Bar, turning the whimsical bakery she founded and its soon-to-be 14 locations to profitable growth without taking outside investment.

“I like to figure stuff out for myself,” she tells Fortune. “That’s the spirit I have in the kitchen, too. I like to make my own set of rules.”

On Wednesday, the company is announcing that it has closed its first-ever round of funding—a Series A in which RSE Ventures was the sole investor. The companies declined to reveal the size of the investment, but RSE Ventures co-founder and CEO Matt Higgins said that it represents a “significant minority interest in the company.”