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What Does Freezing Peanut Butter for Peanut-Butter Stuffed Brownies Do?

I watching this Twisted YouTube video on brownies and in one of them they freeze peanut butter until it's solid to make peanut-butter stuffed brownies -- instead of just adding room temp peanut-butter to brownie batter. It looked cool and I wanted to see: What does freezing peanut butter for Peanut-Butter Stuffed Brownies Do?

So I performed an experiment with baking brownies in the same pan: frozen peanut butter in one 1/2 of the pan and regular peanut butter in the other 1/2 of the pan.

Thursday, November 21, 2019, Attempt #1:

In the video, they melt peanut butter in the microwave to make it more of a liquid. Then, they pour it directly into a muffin pan and freeze it for 2 hours until the peanut butter is solid.

After 2 hours, the peanut butter is frozen solid and they pop it out of the muffin pan and they have a solid frozen peanut butter cup, which they submerge in the brownie batter.

After they bake the brownies, they have a nice melt-y but semi-solid area of peanut butter in a brownie: peanut-butter-stuffed brownie.

I think the point of freezing the peanut butter and making it into a specific solid shape is that as it bakes it is still semi-solid and stays in its position to make a peanut-butter stuffed brownie since it is a much colder temperature than the brownie batter. It's a similar principle as to making Juicy Lucies (cheeseburgers with cheese on the inside) or the stuffed Italian meatballs I, the cheese has to be the correct size and form and cook differently than the burger meat. See posts. :)



So I did this, except for in the video, they made their own brownie batter. I just used Ghiradelli brownie mix, which is no joke; that stuff is good. :)

Here are some pics from melting the peanut butter and pouring it into the muffin pan. I left the peanut butter in the freezer for 2 hours as in the video.

When I took out the peanut butter, it was frozen solid, but I could not get it out of the pan! I don't know how the magicians did that in the video. I left it out on the counter for a minute or 2 and it actually softened a little until it popped out some. Some of them I kind of had to spoon out of the muffin pan.

So the peanut butter might have been a little frozen than in the Twisted video when it went into the oven.

I put them in the oven and baked them according to package directions or around 35-40 min.

RESULT: Fail. :)

We are good at this? I was not able to make the peanut-butter stuffed brownie as in the video. :)

Since I couldn't get the peanut butter out of the pan when it was frozen and had to let it soften, I think the peanut-butter was a little too softened by the time I put it in the batter and so it kind of acted like regular peanut butter (without freezing). It sort of stayed in the position I put it in, but the peanut butter kind of diffused through the brownie -- similar to just adding peanut butter without freezing it.

However, there was a slightly different smoother texture to the peanut butter that I microwaved and froze, which was nice. So that was one difference between the two batches even though it was not the "peanut butter-stuffed brownie."

Both sides tasted good. Haha. :)

In these photos, on the left side is where I froze the peanut butter and on the right side is where I just added it without freezing. If you look closely, you can sort of see that the peanut butter has a smoother silkier consistency on the left side.

Microwaving & Freezing Peanut Butter vs. Just Adding Peanut Butter

Wednesday, November 27, 2019 / Thursday, November 28, 2019, Attempt #2:

Since being inspired by the Twisted video and the idea of freezing the peanut butter, I have been experimenting with some of my own recipes to try to make some other stuffed baked goods with limited success, haha. :) But coming up with some good tricks and some good fun easy recipes nonetheless. (Stay tuned!)

One of the main problems I had during my first attempt was that I could not get the frozen peanut butter out of the muffin pan. In my experiments with other baked goods, one of the tricks I came up with for freezing things is to:

Tip: Freezing things for baking goods

- Spray a paper cupcake cup with cooking spray and then pour your liquid in there before freezing it in the freezer

- Then after it's frozen, you can peel off the paper and put your solid into the batter.

- I also usually just put the liquid in there and leave it overnight to freeze longer.

So that is what I did with this attempt. I poured the melted peanut butter into paper cupcake cups. I also poured in more peanut butter into each paper cupcake cup -- so the peanut butter was ~1 cm tall. This would make a bigger frozen solid peanut butter piece giving it a better chance of slowly melting and staying in the same position. I put it in the freezer to freeze overnight.

Today, when I took the peanut butter out of the freezer, it worked a lot better. :) You can see the 2 solid frozen peanut butter pieces.

Like in the first attempt, I baked two batches of brownies in the same pan -- 1/2 I put the frozen peanut butter and the other 1/2 I just added some peanut butter.

RESULT: Success. :)

We are good at this. I was able to make a peanut-butter stuffed brownie as you can see in the bottom picture on the left. There is some brownie above and below the peanut butter and it stayed in one place. I think if I had made a full batch with the microwaved & frozen peanut butter, so that the batter could be little taller, it would have worked better. That way, the peanut butter could be over ~7-10mm of batter with 5-7 mm batter on top. I'll try that next time.

You can see in the pics above that there was only a little bit of batter over the frozen peanut butter cups before going in the oven, but it still worked! :)

This photo to the right shows what they looked like coming out of the oven.

Also like I mentioned in my Attempt #1, in these photos, you can see even better how the consistency of peanut butter that has been microwaved & frozen is smoother and silkier than if you just add peanut butter to brownies.

Give it a try! We are good at this!

Microwaving & Freezing Peanut Butter vs. Just Adding Peanut Butter

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