Frisk was minding their own business in the library of Muffet's manor. The library was, of course, covered in webs, and spiders were crawling all over the room. They soon found an interesting looking book and set it down on a wooden table, squishing a few spiders in the process.
They started reading the book, and managed to read through about a quarter of it before they suddenly felt themselves being lifted into the air by their shirt collar. They were turned around and saw the familiar grinning face of Muffet. Her familiar five eyes looked at Frisk happily, and dangling from her familiar grin was her familiarly large cigar. Frisk giggled and gave their mother's cigar a poke.
"I think it's about time that I teach you about baking." said Muffet. "How does that sound?"
Frisk nodded happily. Muffet then placed the child on her uppermost set of shoulders and carried them out of the library. Muffet hummed as she carried Frisk through the manor, puffing a few clouds of purple smoke. Muffet was a rather rich girl, and her house was quite vast and well-decorated. They past by a few expertly weaved webs on the way to the kitchen, where a large, rather ornate oven sat. Muffet set down and took a drag on her cigar.
"Alright." she said, blowing a smoke cloud shaped like a cupcake. "We'll be making some spider cupcakes."
Muffet looked up at the ceiling, where hundreds of tiny spiders were crawling around on webs. Muffet smiled and reached into her pocket, taking out a small whistle and handing it to Frisk. Frisk nodded before blowing into the whistle. They didn't hear the sound it made, but the spiders on the ceiling soon crawled down, eventually forming a swarm on the counter. Muffet hummed another song to herself as she waked over to a nearby kitchen cupboard and pulled out a large, hefty purple mallet. The two smirked at each other knowingly.
"Want to do the honors?" asked Muffet, pointing the hammer towards Frisk.
Frisk was tempted, but told Muffet to go ahead herself.
"Very well." said Muffet. She blew a purple smoke ring before raising the hammer with all six arms. Frisk stepped back a bit.
Muffet swung down the huge mallet into the counter in one swift motion, and soon both she and Frisk were covered in purple spider juice. They both laughed as Muffet scooped up the purple juice and poured it into a big bowl, along with some flour, yeast, silk, and spider legs for texture. Handing Frisk a spoon, she took a drag on her cigar and watched fondly as Frisk quickly stirred the ingredients together into a mixture. Muffet ashed a bit of her cigar into the bowl. Frisk didn't mind, seeing as how it was all spiders and webs anyway.
When the stirring was done, Frisk gave the spoon a lick, the spider batter tasting quite good, if a bit eerie. Muffet brought out some cupcake trays, holding them out. Frisk poured out the bowl into the trays, watching the batter slowly ooze out of the bowl. when each of the trays were filled, Muffet walked over to the oven, pulling the door open and sliding each of the trays in before closing it. She set the timer, and took a seat on top of the large stove. Muffet hummed a tune to herself as she brewed herself a cup of tea and sipped from it. After a while, however, it became apparent that the oven had shut off.
Muffet climbed off of the stove and said "Hmm, I wonder what it could be." She opened the over door and stuck her head inside, the huge spider stogie still hanging from her mouth. Frisk walked closer to her as she muttered "Perhaps it's something to do with the gas."
Frisk noticed a weird smell just as they saw a purple spark fly off of the tip of their mother's cigar. Then another. Soon, the tip of her stogie was sparkling in a rather pretty, if quite concerning way. Seeing as there was little way to prevent the inevitable, Frisk just smirked, shook their head, and plugged their ears.
With a blinding, massive purple fireball, the oven exploded, taking the kitchen and half of the manor with it. Frisk and Muffet were blasted far off into the sky by the sugary-scented explosion, Frisk hanging on to their spider mom tightly as they rocketed off over the horizon, twinkling among the stars.
The two landed somewhere far away, leaving a small crater. They crawled out, both thoroughly covered in soot. Muffet's ribbons had been blown off in the explosion, and her soot-filled hair reached past her waist. The cigar in her mouth had been reduced to a large smoldering stub, and the two smelled like cupcakes and flour. Muffet nonchalantly licked three of her thumbs before using them to wipe some of the soot from Frisk's cheeks. The two stood in silence for a short while, looking around a bit in the plain they had landed it. Then, the two burst out laughing.
"I thought I'd smelled gas." giggled Muffet. "Oh, well, I supposed I needed a new oven anyway. Something tells me I'll be needing a new kitchen, too."
She smiled at Frisk and said "Well, I'd say that was a decent enough baking lesson. I'd bet it was a good lesson in pyrotechnics, too."
Frisk let out a short laugh.
Muffet looked up to the sky and spat out what was left of her cigar, watching as it flew through the air before vanishing into the distance. Reaching into her pocket, she pulled out a newer, more intact cigar. Popping it into her mouth, she looked down at Frisk, who pulled the lighter from her pocket and provided her a light for her spidery smoke.
Muffet took a drag before blowing a purple smoke cloud, shaped like an arrow pointed towards home. "Well then, let's head back."
The walk home was fairly lengthy, but enjoyable. Muffet happily told Frisk a few stories similar to this incident. Apparently, this wasn't exactly the first time an oven exploded on her. She also blew clouds of violet smoke in whatever shape Frisk would request. Muffet didn't usually wear her hair down, so Frisk took this opportunity to feel it a few times. It felt silky smooth, like spider thread. It also smelled like cake, though that was most likely from the recent explosion. They had come across a handful of people on their walk home, to which they were more than eager to recount the story of why they were in the middle of nowhere, covered in soot.
Eventually, they were back at Muffet's manor, which had a considerable chunk blown out of it.
"Well, would you look at that." said Muffet casually, gesturing with her cigar. "It seems like a kitchen renovation is in order. Shouldn't take too long."
With that, the manor took that tempt of fate to finally succumb to the damage of the explosion, and the whole house came crashing down into a heap.
Muffet, still not especially fazed, took a long drag and said "Seems like a lot of renovations are in order." She turned to Frisk with a grin and said "Would you be interested in an architecture lesson?"