Raiza Costa gets thick custard slowly poured on her head in a trailer to a Brazilian cooking show (a series of short cooking recipes/guides) "Rainha da Cocada" launched on GNT (owned by TV Globo) back in 2015.

It's at the very beginning: https://www.youtube.com/watch?v=0ndDhj-3Pp8
or here on her Instagram:
https://www.instagram.com/p/CLmGrYXnPNu/?hl=en
https://www.instagram.com/p/9kZV4_ABV0/?hl=en

She was also messed with honey, chocolate, syrup and other stuff for some Instagram promotional pics and vids:

https://www.instagram.com/p/BrRLudpFcDT/?hl=en

https://www.instagram.com/p/BL08g5aDIzd/?hl=en

https://www.instagram.com/p/BaRdTTVBMAb/?hl=en

https://www.instagram.com/p/BS9z3IvhIpo/?hl=en

https://www.instagram.com/p/BRwqRZFhL64/?hl=en

https://www.instagram.com/p/BDYXkj0gBW4/?hl=en

https://www.instagram.com/p/5kYZVuABYx/?hl=en

https://www.instagram.com/p/0f5z7kABe1/?hl=en

On the last link you provided, check her blowing the chocolate out of her nostril like a pro. Also, she says,

"If that was your secret wish, don't worry, I'm there with you "

She certainly seems to enjoy getting messy and ruining her nice clothes.

Here, at 4:20, is the chocolate gunging from the 3rd picture above: https://www.youtube.com/watch?v=LcSLGdRD05E

One of the chocolate gungings at 4:15 - https://www.youtube.com/watch?v=vErW2_QhOs8

Raiza covered in chocolate at 9:58 - https://www.youtube.com/watch?v=46ccQU0KMvw

1st video 5:00 chocolate shower

2nd video 4:50 whip cream


also, not quite a video of the chocolate bath

https://www.instagram.com/p/BnLxxBchaeX/

https://www.youtube.com/watch?v=Eqnu3spT2qU

https://www.youtube.com/watch?v=xg1dLY8_3ec

Wow, she's great. I wish more TV chefs followed her lead.

In The Untied States....NEVER!

Man I wish they would do an HGD on her :p

Come to think of it, we haven't seen much of Mew Mew lately

Who is the writer/producer of this show?

We have to send the bouquet of roses to somebody.

That would probably be Raiza Costa herself.

Most of the stuff comes from her own cooking web series "Dulce Delight" (Dulce Delight Brasil and Raiza Costa on YT).

Here is a funny Non-messy video in which she cooks topless and uses various ingredients and kitchen utensils to cover her breasts: https://www.youtube.com/watch?v=nNFNdw9zTHg

This one in particular seems, um, aimed our way.

Wow, that's new for me! Hope she never stops!

By god, I absolutely LOVE this shot...

Did anyone happen to find what video the fifth image from the beginning of this great thread came from lol?

Found a flour clip at 10:10 in this video-

https://m.youtube.com/watch?v=cDA1qZ99UD0

oh wow, these are GREAT finds! she is an absolute babe, with a great sense of style, and she takes those gungings like a pro WAM model. am i in love?

and also, her cooking videos are totally cute and fun! it looks like all these are from a few years ago, and that she's continued to grow her career in food TV. bravo to her!

Not yet.

Some of the images might have been just illustrational photos, for thumbnails, promos and such.

I gotcha. I noticed that as well as I trying to find more videos/pictures online. She has a cookbook and that's where one of the white slimings and chocolate bath pics come from. There's a Instagram page for it and there might me some bts photos/vids maybe!

Ah, it's so tantalising trying to figure out if she's doing these just because she thinks they get her show noticed, or if she knows WAM is a thing that might titilate her audience, or if she's properly into it and the whole show is just a front for getting slopped and broadcasting it to the world...

Here she has a little bit of chocolate on her head. It's at the very end of the video: https://www.youtube.com/watch?v=Uw-FSNoVFJ8

Definitely much much weaker than the other chocolate gungings, but better than nothing.