Toriel hummed happily to herself as she walked back home with bags of groceries in hand. The motherly boss monster had been doing a lot of extra shopping lately, though she didn't mind at all, as it felt good to have another mouth to feed in her lonely little house in the Ruins. Frisk, a human child, had recently come into her care, and she was set on making sure that they felt as comfortable with her as possible!
The goat-like monster paused briefly, looking at her bags. She'd gotten a lot of snails, hoping to make one of her favorite dishes, snail pie. As much as she loved it, though, it disappointed her that Frisk had so far politely declined to try even a bite every time she had made it, meaning she'd needed to make an entirely separate dish for them. She didn't mind that much, as she loved baking for them and didn't want to force the issue, but she did wish that Frisk would at least give the pies a try.
"Pst! Miss, a moment of your time?" a voice called out to her, catching her attention. She turned to find a cloaked figure in the shadows, stepping forward. She frowned, ready to set her groceries down and use her fire magic if threatened, only for the figure to stop and raise their hands defensively. "I mean no harm, ma'am! I merely wanted to offer you something! You have a lot of food there, so you're clearly planning on making something delicious! I merely wanted to give you something special to add an extra oomph to your meals!"
The cloaked figure produced a small bottle of brightly colored liquid. "This special additive will highlight the best flavors of a dish tenfold while negating any nasty tastes from it! No meal can compare to one made with this! Even the fussiest of eaters will love anything a drop of this touches..."
Toriel listened to the spiel with suspicion... though, the more they talked, the more she felt that this would be the perfect solution to her problem. "How can I be sure it's safe? And... how much is it?"
The figure merely chuckled, pulling out a spider doughnut from their cloak and opening the bottle, the lid having an eyedropper on it. They dropped a little onto the doughnut, resealed the bottle, and proceeded to eat the doughnut. With just a single bite, they began moaning in ecstasy, soon devouring the entire thing. "Apologies for the noise, even I haven't grown used to how very good this tastes! And as for price... well, consider it a gift!"
Toriel bit her lip as she thought about her options here...
Shortly later, Toriel returned home, an extra ingredient added to her bags. Frisk came out to greet her as she prepared dinner, not seeing her add a few drops of the additive to her snail pie. And soon after, it was time for dinner.
Toriel helped herself to a slice of the snail pie as Frisk sat down to wait for their separate dish. The motherly goat monster took a deep breath, then spoke up. "Frisk, would you please reconsider trying the snail pie? It would mean ever so much to me if you'd give it a chance?"
Frisk grimaced a bit, but didn't outright refuse. The pie did smell oddly good for once...
(Author's Note: To cut back on chapters, I'm leaving Frisk's gender ambiguous until it's necessary so that there isn't just a chapter of selecting their gender. Also, in accordance with the rules set, Frisk will change if they grow. I don't care for that distinction, but I respect the author's wishes.)