Reijou VTuber wa Maid no Yashoku ni Juurin sareru: Kindan Gohan de Shokurepo Namahaishin

Mashiro, the daughter of the president of a major food company, has been secretly active as a Bratty Demon Princess VTuber (the polar opposite of her true self) hoping to break out of her introverted shell. No matter what she tries, her subscriber count just won't grow... Then one day, a new maid named Kozue arrives at her mansion! Thus begin her days of being overrun by the "forbidden late-night snacks" of the mysterious and culinarily talented Kozue!

(Source: Kadokawa, translated)