Asriel probably wouldn't shout at Frisk if this happened, though.

Furthering my point that the whole comic has no joke because it's not even making fun of how the characters act or anything.

Not to mention the title makes it feel like the whole purpose of the comic was to show Frisk eating Asriel's cake. If it were pie it'd at least make a little sense, but cake doesn't have anything to do with Undertale.

Toriel's reaction is a little funny but not enough to be the entire punchline.

Not to mention Frisk doesn't really have a gender so making fun of the whole "boys will be boys" thing doesn't even work too well.

Now, imagine if it were Asriel eating the cake, and instead of Frisk, it's Chara yelling.

This would be a genuine joke, making fun of the whole "Chara is obsessed with chocolate" thing. It would actually work as a joke.

The comic just feels pointless.

Frisk eats Asriel's cake.

Asriel is mad.

What's the point?

And I didn't find it heartwarming either.

If it wanted to be heartwarming, it could've had an extra panel or something where Frisk and Asriel both felt bad and apologized, Asriel for yelling, and Frisk for eating his cake.

I'm probably overanalyzing this, but my point still stands.