News of her tutoring spread quickly. While activities without prior approval were still banned, Umbridge wasn't about to deny Snape.
So, she capatalized
Potions, like cooking, like chemistry, required proper technique to succeed. Techniques that could be mastered using any potion.
Even healing ones.
From Burn Paste to a Cure For Boils, she ensured the kids learned everything. Watching as her group grew from First to Second to Third years.
It was through these new additions that she was reacquainted with a...friend.
"You would make a wonderful Potions Mistress."
"...thank you, Astoria. But remember, sliced not chopped."
"Right!"