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Ask HN: What are you learning?

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Re: Ask HN: What are you learning?

#711
post #708

I'm learning how to make tacos starting with the tortilla. I'm originally from San Diego and have always missed Mexican food whenever I moved abroad. On a recent trip back to San Diego, I went to over a dozen Mexican shops to find particular flours to create tortillas from. I also went to Mexico twice just to find a specific brand of soft wheat flour. In total I think I experimented with atleast 5-6 different flours…

Would you mind sharing your tortilla recipe and/or pointers?

For sure, I mostly watched the Taco Chronicles Carne Asada episode on Netflix about 20x haha but here's a link to a similar recipe https://cooking.nytimes.com/recipes/1019621-sonoran-style-fl... however here's the gist of what's been working well for me so far since I love flour tortillas more so than corn:

Current recipe

130g flour

80g hot water (steaming)

35g lard

1g salt

Twice as much baking powder as what you see in salt (it weighs less so I don't see it registering on the scale)

Depending on your location, you may use 120-125g flour, 80g water because the water/environment is just different.

1. I typically place a pan on a scale and then put in 35g lard (pork and duck have worked well for me), then I put the pot on the lowest heat to melt. Fat is key, I tried using oil, butter, etc in the past and it didn't work well for me. It's also possible because I was butchering all the other steps too, this is what I call my cracker tortilla days :(.

2. Next I put on my kettle for hot water (80+ grams worth), it's fine if it boils but you mostly just want hot steaming water.

3. I put a bowl on the scale and pour in 130g of flour. Flour of course is another key element since not just any flour gets the job done, I've been experimenting and having some success with flours in Europe though that are more artisan bread friendly. Here are some Mexican ones https://allofeverythingblog.wordpress.com/2014/04/16/autheni... that you want to look for and you can also try to order some online (white sonoran wheat flour). Weirdly enough, there is a difference with El Rosal in America vs the ones from Mexico, the American ones are enriched and bleached which gives it a slightly diff dirt like smell and flavor. I recommend finding a way to get the flour from Mexico if possible.

4. I take the pot with fat off the fire, let it sit for a 1-2 mins.

5. I take the hot water off the fire, and pour it into a mug on my scale, looking for 80g of weight.

6. I put the baking soda and salt into the fat, along with the hot water from the mug, stir it up so it's all mixed.

7. Pour in the flour and mix it a bit with a fork, then knead it like you're folding the dough on itself for about 5 minutes. At first it may stick to your hands but after a minute or so that should go away, if it doesnt you need to add a tiny bit of flour, or water if its too dry. This is hard to explain since its more a feel. After 3 sessions or so you start to understand the consistency you're looking for.

8. After 5 minutes you should have a smooth dough that you can then pinch off into 8 tiny golf balls. If you let the dough sit here, which isn't necessary, (I've tried as long as 4 hours) it becomes quite elastic which makes it harder to press/roll the tortilla to a manilla folder thin thickness.

9. Roll them into a ball and then I recommend using a press with baking sheets so they dont stick, but you can also use a rolling pin.

10. If using a rolling pin, roll it up and down into a rounded button like shape, then turn that horizontal and do it again with equal pressure on both sides of the pin, this should result in a circular shape. I don't recommend adding flour since that will result in a more floury taste, but I'm still trying to figure out how to get around this without a press, since the tortilla will stick to your surface without baking paper. I don't recommend foil/plastic because the creases will reflect in your tortilla. At the end of rolling, they should be pretty thin (manila folder thin)

10. Make sure your pan is on medium high heat, takes about 5 minutes to get there, sometimes longer if using a cast iron. Then place your tortilla on the pan, it should bubble within 20 seconds, then you can flip it wait another 15-20, then flip again. This is pretty crucial, if the heat is too low its undercooked with no bubbles, if its too high it burns and the little brown spots will crack as you try to roll your tortilla. Heat's probably one of the most important parts which took us about 50 tortillas to learn.

11. After that you can place it on a plate or in a tortilla warmer.

Hope this helps! In the future I'll probably look into corn but that's definitely once I perfect an entire taco first.

Re: Ask HN: What are you learning?

#712
I am revisiting my notes and re-watching lectures about basic machine learning algorithms like linear regression and logistic regression.

I am implementing these algorithms, so I need to understand a lot of the details. Here are some notes, which are work in progress: https://notabug.org/ZelphirKaltstahl/machine-learning-notes/... I try to write it in a way, that does not leave open questions and will be accessible to me and hopefully others years later.

Re: Ask HN: What are you learning?

#713

I'm learning how to make tacos starting with the tortilla. I'm originally from San Diego and have always missed Mexican food whenever I moved abroad. On a recent trip back to San Diego, I went to over a dozen Mexican shops to find particular flours to create tortillas from. I also went to Mexico twice just to find a specific brand of soft wheat flour. In total I think I experimented with atleast 5-6 different flours…

Oh man, this is a topic near and dear to my heart! I'm originally from California, but I lived in Mexico for several years. I am dying for some good traditional tacos. (Currently abroad but far from Mexico) The best tortillas I had were the handmade ones, made from organic blue maize.

I want to live in Mexico for a little bit one day. I imagine you came out of that with a taste for tacos that can't be matched anywhere. Were there any spots that you really enjoyed that had the organic blue maize that you liked or was it mostly abundant because Mexico hah? I'll definitely bookmark it :-)

Re: Ask HN: What are you learning?

#715
post #337

Earlier quoted context omitted.

This really reminds me, it's been two decades now since I've taken _any_ Algebra. I'd really love to go re-learn it from the basics on up. I mean, I still remember a lot of it here and there but some sort of refresher course up to doing more advanced would be awesome. Any recommendations?

I think Linear Algebra is traditionally recommended, since you can readily apply a lot of geometric intuitions while picking up the mathematical ones. The drawback is that you have to make sure you're not cheating yourself of the mathematics by over-relying on the geometry. Sheldon Axler's acclaimed "Linear Algebra Done Right" is freely available as a download [1] through July due to the pandemic. I've not read it (y…

Sheldon Axler's acclaimed "Linear Algebra Done Right"

Seconded. Highly recommended.

Re: Ask HN: What are you learning?

#716

I'm learning how to make tacos starting with the tortilla. I'm originally from San Diego and have always missed Mexican food whenever I moved abroad. On a recent trip back to San Diego, I went to over a dozen Mexican shops to find particular flours to create tortillas from. I also went to Mexico twice just to find a specific brand of soft wheat flour. In total I think I experimented with atleast 5-6 different flours…

I've seen a lot of custom made hotplate/pans made by a lot of my hispanic friends families for making tortillas, it's basically a slab of metal on a stove with a handle. I don't know anywhere that makes them since all of them are a kind of "I had a friend weld it for me" situation, but I found that those hotplates made making tortillas much easier.

Re: Ask HN: What are you learning?

#717

I'm learning how to make tacos starting with the tortilla. I'm originally from San Diego and have always missed Mexican food whenever I moved abroad. On a recent trip back to San Diego, I went to over a dozen Mexican shops to find particular flours to create tortillas from. I also went to Mexico twice just to find a specific brand of soft wheat flour. In total I think I experimented with atleast 5-6 different flours…

One trick for those that are not as advanced as you are: For whatever wheat you are using, add boiling water instead of cool water.

I've found this trick worked (a few years ago now) for a couple of trials where I wanted to use just flour and water. I think the boiling water makes the flour more elastic.

Re: Ask HN: What are you learning?

#718
post #337

Earlier quoted context omitted.

This really reminds me, it's been two decades now since I've taken _any_ Algebra. I'd really love to go re-learn it from the basics on up. I mean, I still remember a lot of it here and there but some sort of refresher course up to doing more advanced would be awesome. Any recommendations?

I think Linear Algebra is traditionally recommended, since you can readily apply a lot of geometric intuitions while picking up the mathematical ones. The drawback is that you have to make sure you're not cheating yourself of the mathematics by over-relying on the geometry. Sheldon Axler's acclaimed "Linear Algebra Done Right" is freely available as a download [1] through July due to the pandemic. I've not read it (y…

Sheldon Axler book for some reason is hugely hyped in HN always when this topic comes up.

But I do wish for a more comprehensive book on Algebra covering the entire breath of the field.

Matrix Analysis by Roger A Horn, seems a good book with most of the knowledge of matrices covered. Could be helpful for people working with Graphics.

Re: Ask HN: What are you learning?

#719

I'm learning how to make tacos starting with the tortilla. I'm originally from San Diego and have always missed Mexican food whenever I moved abroad. On a recent trip back to San Diego, I went to over a dozen Mexican shops to find particular flours to create tortillas from. I also went to Mexico twice just to find a specific brand of soft wheat flour. In total I think I experimented with atleast 5-6 different flours…

I've seen a lot of custom made hotplate/pans made by a lot of my hispanic friends families for making tortillas, it's basically a slab of metal on a stove with a handle. I don't know anywhere that makes them since all of them are a kind of "I had a friend weld it for me" situation, but I found that those hotplates made making tortillas much easier.

Good call, maybe I should just look into getting something custom made here. This is the press I'll likely buy once back https://www.amazon.com/Mexican-Electric-Tortilla-Gorditas-Bu...

Re: Ask HN: What are you learning?

#720
post #335

Earlier quoted context omitted.

There are lots of photos in this thread for the stone: https://twitter.com/simonsarris/status/1234186085200207872?s... We're making semi raised beds up the hill: https://twitter.com/simonsarris/status/1246544902193909769?s... With house compost and composted manure from a local farmer. The lower garden is mostly no till with added compost. We're not really sure what we're doing! So I can't really give advice. I usual…

I grew up in Nashua, and when I looked at your posts about restoring your home it made me nostalgic for New Hampshire. I live in Alaska now and hope to spend the rest of my life here, but NH has the feeling of home that you can only get from having a childhood there. I found your posts a while back, and I always enjoy looking at what you've been up to when I haven't seen it for a while. I used to run and bike past so…

Ah I grew up in Nashua too, at 37 Orange street, if you've ever seen the house (An 1840's house, just at the start of the downtown historic district)
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