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I was trying to make XXL Watermelon Jell-O Shots but the Jell-O was not firm enough and fell apart. Should I use more Jell-O and less water next time? The recipe requires unflavoured gelatin but I can't find it in the grocery store nearby, hence can I use more Jell-O so its more concentrated and thus more firm?

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+1 for showing me something I have to try. Where in the world are you? Any decent sized grocery store in the US is going to carry Knox, but possibly in a weird place (as in not with the Jello). –  Jolenealaska Jul 28 at 18:45
    
I totally concur with Nick, this just isn't worth trying without the unflavored gelatine. If worse comes to worse, you can get it on Amazon, or substitute gelatine sheets (how to do that is another question), if you are in a place where those are easier to find. –  Jolenealaska Jul 28 at 19:06
    
Unflavored gelatin isn't one of those 'impulse buy' items so it's rarely at eye level in grocery stores. It'll either be a box w/ lots of individual packets in it, or a canister. If you can't find it on your own, ask one of the employees. You can also get it online. (I've gotten it from Amazon for a past project) –  Joe Jul 28 at 19:12
    
@Jolenealaska I have used gelatin before and I know what it looks like (and I can find them at a grocery store further away). I suppose my question was more of a "can I still make this recipe without using gelatin by concentrating the Jell-o?". Thanks :) –  Adrian Carolli Jul 28 at 22:51
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@AdrianCarolli Because I'm weird this way, water is boiling now to mix 80 grams of boiling water, 80 grams of vodka and 1 3oz box of Jello. I'll update in a few hours in an answer. –  Jolenealaska Jul 28 at 23:50

2 Answers 2

up vote 5 down vote accepted

I'm totally retracting everything I said in comments. Doing this with just Jello (no unflavored gelatin) works just fine. The key is A LOT of Jello.

After reading your question I researched the question of "How much gelatin is in a box of Jello?" The only answer I was able to find was that a 4-serving box of Jello contains as much gelatin as a .25oz packet of unflavored gelatin powder (Knox). So, in order to test the ratio of the recipe with one 4-serving box of Jello, I added 80ml each of boiling water and vodka.

jello1 jello2 jello3

Unbelievably, it worked. The firmness of the gel seems just right for the purpose.

This is cherry Jello, so the color is too burgundy. Unfortunately, I had to do it again to say for sure that the flavor is OK. I had no Jello, but my next door neighbor had some sugar-free. I so fully didn't expect it to work that I didn't care that it was sugar-free even though I knew full well that aspartame at that concentration was going to be inedible (and I was right - UGH).

So, I went to the store today and bought an 8-serving package of Jello. This time I used strawberry flavor with real sugar. In a bizarre coincidence, I saw something else in the store that I had never before seen in the state of Alaska: Mini Watermelons.

WOW, so I got one of those too.

Here we go again. I mixed the double sized box of Jello with 160ml of boiling water and whisked until dissolved (that took a couple of minutes), then I mixed in 160ml of vodka. As that cooled on the counter I scooped out most of the flesh from half of the watermelon.

It's all over now but the cutting.

Jello4 jello5

The only reason I felt the need to lean the slices up against the custard cup in that shot is that I sliced them too thin. I was trying to make up for the fact that the watermelon is tiny. Cut these suckers a good inch thick (2.5 cm) and they'll stand just fine.

So, it works. Use 6 8-serving or 12 4-serving boxes of Jello to 4 cups (946ml) each of boiling water and vodka.

I had just enough jello/water/vodka mixture left after filling the watermelon to make a shot of that plus a shot using the same ratio of Jello/gelatin/water/vodka as in the original recipe.

Jello6 Jello7

This stuff is so boozy, that I think the additional flavor and sugar of the all Jello version actually tastes better than the original recipe.

I'm shocked, but you don't need unflavored gelatin to make this silly thing.

EDIT: 24 Hours later, I've got to add this. As I was carving the flesh out of the watermelon rind yesterday, I realized that I was being silly to be so thorough, especially at the ends. I really only needed the center slice for the experiment and a photograph. So just now I knocked off the Jello from one of the end pieces to eat some watermelon. That was really good! It had absorbed some of the vodka and flavoring, but the texture was just like fresh watermelon. So if you do this, do it a day in advance and leave some of the flesh of the watermelon. You'll thank me :).

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Cool let me know how it goes / tastes. –  Adrian Carolli Jul 29 at 21:19
    
Thank you for putting so much time and effort into this answer! –  Adrian Carolli Jul 30 at 6:23
    
@AdrianCarolli My pleasure, it was fun. But now I'm buzzed :) I think I'll go to bed early tonight! –  Jolenealaska Jul 30 at 6:26
    
@AdrianCarolli be sure to check out the edit I added to the answer a day after the experiment. –  Jolenealaska Jul 30 at 22:48

This step mentions you require the extra gelatin:

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You could kind of "wing" the ratio but that's risky. But when it comes to Baking/Pastries/Deserts, you must get the ratios perfect; even when it comes to gelatin. Coming from experience: there are few foods worse than over gelatinized foods.

I would go the safe route and find the necessary amount of unflavored gelatin to add to the original mix.

You said you couldn't find the gelatin? It's really common and found in the baking aisle with the nuts and cake batters and such. I'm not sure what is in your area but a more "mid level" or "high class" grocery store like VGs, Krogers or Wholefoods will very likely carry the gelatin. The grocery area in a place like Walmart for instance, may not carry the gelatin.

In short: don't wing it, just get the gelatin.

Also, another thought. Maybe take a fork and create some "channels" in the watermelon. If the inside of the watermelon is perfectly smooth, the gelatin won't be able to grip as well. Just an idea.

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The fork channels would add grip and realism. It's a good idea. –  Jolenealaska Jul 28 at 19:11

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