Fudgiest 100-Hour Brownies Recipe Vs. Gemma’s Best-Ever Brownies

Bigger Bolder Baking
1K followers
551 Video Views·Aug 23, 2024
Bold Bakers, I was really intrigued when
I saw a viral video for
100-hour brownies from
Alvin Zhou who was from Buzzfeed Tasty.
And I thought to myself, you know, are
these results, like, are,
is it the fudgiest, best
brownie you're ever going to taste?
I didn't know, so I decided to try it.
This is my original brownie recipe, but
I'm gonna use his exact
same technique because
that's really where the
secret is in this recipe.
We're gonna go step by step and just see
if we get, like, amazing results.
So in a nice big bowl here, I have some
chopped bittersweet chocolate.
You're talking around 70%,
I'd say no less cocoa solids.
You want really good quality
to make the best ever brownie.
Into this, I'm going to add
in some cold cubed butter.
My recipe calls for salted butter.
I love that extra bit of salt in a
brownie and it just benefits it so much.
And with all of this, like, time of
resting and waiting 100
hours, it's gonna make it
taste even better.
Now, you can do this two ways.
You can put it over a bain-marie on the
stovetop or you can be
lazy like me and put it in the
microwave very gently for a few seconds
until the whole thing is melted.
Here is my melty chocolate, lovely.
So into this mixture I'm
going to add in dark brown sugar.
Dark brown sugar in brownies adds extra
moisture, it actually has
more moisture than a regular
granulated sugar, so it just
adds to the fudginess of it.
It also has a caramel flavor, so you're
adding in flavor with
this lovely, like, toasty,
kind of hickory brown sugar.
It's really delicious.
Sometimes you see a mix of sugar,
sometimes you only see white.
With brownies you have to have some dark
sugar in there to really
just, like, get that really
amazing flavor.
Next we're going to add in our salt.
So now sometimes people add
the salt in with their flour.
I like to add it in early.
If you're making
custards, add it into the egg.
Because I like it to dissolve, actually,
in the chocolate
mixture and just get all the
way throughout, rather than adding it in
later when the batter is
cooler and, like, it doesn't
melt.
I want it to get everywhere and I really
think that makes a difference.
Next is vanilla extract, a
must in any of my brownie recipes.
I like to use Rodelle Madagascar Bourbon
Pure Vanilla Extract.
This is one of my favorites.
The quality is amazing.
It just really makes for,
like, overall delicious brownies.
Beautiful.
Eggs, room temperature eggs, they don't
want to be too cold
going into our batter.
And then we're just going to whisk all of
these ingredients together.
Whisk it until it's nice and
smooth and there's no lumps.
You get a whisk together
until it's lovely and smooth.
It kind of looks like chocolate jelly.
Lovely.
Now into our wet ingredients we are going
to mix in a little bit
of all-purpose flour,
just regular flour here.
No raising agent in a brownie.
We want it to be fudgy, not cakey.
So this is what we're going for.
Just mix in that flour
until it is all combined.
There's no more streaks.
And then stop!
So that is our batter.
Here I have an 8x8 pan,
kind of a classic brownie pan.
Poor, look at that batter.
I mean 100 hours or not, this is going to
be a damn good brownie.
Every last bit of
brownie batter into your pan.
Now in the recipe you'll see there's some
little bit of
chocolate that we reserve just
for the top.
Like so.
Very generous with
this, scatter it all over.
Again, bittersweet chocolate.
We do not want to use semi-sweet or we
definitely don't want to use milk.
Please don't use milk.
Please, please, please,
please don't use milk.
Bitter sweet chocolate all the way.
Okay, there's nothing left to do except
cover it up nice and snug.
Okay so let's take note.
We're going to leave that brownie batter
in my fridge for 3 days, 72 hours fully.
Then we're going to come back to it.
So why are we doing this?
What difference does it make?
I will tell you, time helps develop
flavor and it helps develop texture.
We know this so well from breads and
cookies and all those things.
So why wouldn't it work with a brownie?
So during the time in the fridge the
flour actually absorbs
more into the liquid of the
brownie which helps improve
like on a fudgier texture.
You know over time when you put like a
cookie dough into the
fridge and we talk about aging,
the liquid evaporates from the dough in
the fridge so you get
a different texture but
you also get a concentrated flavor.
So all of this is making sense to me.
I hope it is to you too.
I'm excited about the results.
I really think it's going to be
absolutely delicious.
So I'll see you in 3 days.
So here I am 72 hours later.
I'm baking off my brownies at 350 degrees
Fahrenheit, 180
degrees Celsius for roughly
around 40 minutes or so.
So the one issue that I had with this
recipe and I saw some
comments online was that Alvin
took a cold batter from the fridge and
put it straight into
the oven and normally we
would work with a room temperature
batter, push it into
the oven and then bake it.
So your fudgy brownies are now going to
be even fudgier
because you had a cold batter
going into a hot oven.
So I'm just saying like is it the 100
hour method that's
making them super fudgy or
is the fact that you put a cold 3 day
dough into a hot oven?
We're going to find out.
You know when brownies are done because
they're kind of firmer
around the edge here but they
should always have a little
bit of a soft jiggly middle.
That's really what you want.
That means that you know that they're not
overcooked and once
they cool down which takes
a few hours it'll continue to bake and
that will set even more.
So you want that little bit
of a wobble in the middle.
But this is lovely.
Now let me tell you what Alvin does next
which is this is a new one on me.
I trained as a pastry
chef over 20 years ago.
I've never heard this one but you know
I'm trusting in the method.
It's interesting but you now
cover it up hot from the oven.
Just like so.
Be careful of your hands.
And he says to put them now into the
freezer for 30 minutes.
Doing so will trap any moisture that
would escape from the
brownies, keep it inside making
them even more moist.
Which you know makes sense.
So let's go put them in there now.
And we'll see you for 30 minutes.
Okay everyone, I hope you're excited.
This is the moment of truth. Let's cut
these bad boys and see
what's going on on the inside
Coming cold from the fridge. They're
definitely firm and dense, which is kind
of what I like. Okay, let's have a little
look at the fudgy center
Wow, we look at that.
All you can see is fudge
There is absolutely no cakiness in this
brownie from top to bottom going through
the hundred-hour process
I really do believe that these brownies
benefited from us and it
produced this lovely fudgy and
Moist texture in the middle don't take my
word for it. Look for yourself
Here is the exact same brownie batter
that I baked off earlier today
And here is our
hundred-hour brownie and you can see
Straight away the difference the one that
we baked today is shiny
because it has just been baked
The other one is a bit
matte because it is cold
But the one from today is cakey and it's
very crumbly. It's not thick
and fudgy like the other one
There's a little bit of fudge in there in
the middle, but nothing compared to the
hundred-hour brownie
Now I know you can't taste
it. So I'm gonna do it for you
Yeah, the flavor is intensified in these
brownies. Everything has just been like
Sitting and like fermenting and aging
over four days. What makes us so
delicious and rich. I
have to say
I'm a believer
I'm about this texture
and this flavor. It is
Intensified it is salty. You can even
smell it off it. It is so incredibly rich
the salt the vanilla
It's just so pronounced.
It's like everything is
Concentrated in these like packed little
chocolate like squares that are just
loaded with flavor and fudgy texture
I mean, I can't say enough about this
I know I might be a little bit late to
these hundred-hour brownies, but man, am
I glad I know about them now
They are so delicious
Definitely try this recipe and let me
know what you think. Thanks so much for
watching. I hope you enjoyed this video
And I'll see you back here again. Same
time same place next week
