Key Lime Fudge

In the last year or so I have developed an annoying tendency.

I have become one of those people who is convinced they have a life-threatening illness.

With every headache I convince myself that I have a brain tumor and wonder when my tumor  grows if I will become a major genius like John Travolta did in Phenomenon.

With every ache in my knee I am doing research online on who is the best knee replacement surgeon in my area.  Or really the whole country because no expense can be spared when I am in need of a life changing surgery.

My knuckles have been aching lately and I have convinced myself that I have Rheumatoid Arthritis.  My husband laughed at me and said yeah, you’re 36…sometimes things just start to ache a little.

He doesn’t feed into my paranoia.  Instead of playing along and acting concerned he just tells me to go for a walk and drink a glass of water.  Like fresh air and H2O are gonna solve my problems.  Ridiculous.

Watching Grey’s Anatomy also does not help, because there are some crazy medical situations that arise on that show only fueling my internal self diagnosis arsenal.


So the other day to get my mind off the cutting-edge eyeball transplant surgery that I will most certainly need, I decided to make fudge.

Of the key lime variety.

At least my brain is working.

I will warn you, though.  This stuff is basically crack-fudge.  I’m not kidding.  The chance of you having high blood sugar after making and inevitable eating the entire pan is imminent.  Real talk.

First make a yummy shortbread crust.  Kind of unconventional for fudge, but trust me on this.

Then melt some white chocolate.  I always use a double boiler for white chocolate because I am not a good microwaver.

While that’s melting, zest a few limes…

Then mix your melted chips, sweetened condensed milk and Key Lime juice together. Stir in your zest…

Now, if you are feeling fancy, reserve 1/4 cup of the white chocolate mix and tint it green to swirl in to the fudge.

Spread the uncolored mixture evenly over the crust and then swirl in the tinted.

Pop it in the fridge and let it set up for about 2-3 hours.

Cut it up when you’re ready to serve…

Out of control good.  I wouldn’t steer you wrong.


Key Lime Fudge


  • 20 shortbread cookies, crushed (about 1 cup)
  • 5 Tbsp salted butter, melted
  • 1/4 cup granulated sugar
  • 3 cups white chocolate chips
  • 1 (14 oz) can sweetened condensed milk
  • 3 Tbsp Key lime juice
  • zest of 4 Key Limes.
  • green food coloring (optional)


  1. Preheat oven to 350°
  2. Line an 8×8 pan with foil.
  3. In a medium bowl combine crushed cookies, melted butter and granulated sugar.
  4. Press evenly into prepared pan. Bake for 6-7 minutes until edges start to golden.
  5. In a double boiler melt white chocolate chips. When just melted remove from heat and stir in sweetened condensed milk and Key Lime juice.
  6. Stir in zest.
  7. *Optional, reserve 1/4 cup fudge mixture and with a small amount of green food coloring, tint the reserved mixture and set aside.
  8. Spread the un-colored fudge mixture into prepared pan. Then drizzle reserved mixture on top and swirl in with a knife.
  9. Place in refrigerator to set, 2-3 hours.
  10. Cut into squares.


This is a soft fudge, and although you don’t have to, I stored my in fridge.
adapted from Sugar Cooking

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Hi! I’m Shelly and I’m an addict. Of the buttercream sort. I started this site a few years ago as a way to justify my sugary, buttery obsession with desserts. It has worked out well for me so far, because as it turns out you guys all love sugary, buttery desserts too! It feels good to know you're not alone, doesn’t it?

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55 Responses
  1. Andi

    Love the idea, but I’m kind of puzzled by the execution. Do you use candy coloring or just regular food coloring? (I thought you couldn’t use regular food coloring with chocolate – white or otherwise – but does the sweetened condensed milk help with that?)
    And these definitely need to happen in my life soon. If only because I’m slowly dying from allergies.

    And on a related note, I tend to get headaches when I sneeze, and every time I do I convince myself that I have an aneurysm that’s going to burst and kill me the next time I sneeze.

    1. shelly

      I used regular gel food coloring, and I think the sweetened condensed milk makes the difference. Plus, you are using just the tiniest amount of food coloring to tint it just slightly.
      Thanks for the comment 🙂

  2. Hey there –
    Since chocolate is kind of my thing, I thought I’d see if I could help with the microwaving issue! I’m not sure if it will help, but I’d feel like a slacker if I didn’t share.

    So the trick to microwaving any kind of chocolate is to microwave as little as possible and stir, stir, stir in between each interval. In general, you’ll want to microwave for 10-20 seconds based upon your microwave’s nuclear power and then stir, stir, stir.

    You are always welcome to drop me an email with any chocolate questions at MeLissa [at] Chocorocco [dot] com. I’m happy to help. And thank you for all the yummy recipes – my clients love to take your ideas and use them with my products (and so do I!)


  3. First off, I would INHALE with fudge. Inhale.

    Second, I also have this issue. I had to stop watching medical dramas a LONG time ago because all of the sudden, I had every illness and ailment….especially the life-threatening ones. Don’t even get me started on google, WebMD or Mayo Clinic online….symptom checker? Not a good thing.

  4. Okay Shelly, Now you’ve done it! Fudge with a crust? Incredible!

    I kind of have cancer phobia, but it’s sort of legitimate considering my family’s health history. The internet makes it worse as far as self-diagnosis…there’s even a name for it~cyberchondria:)

  5. I don’t want to feed your anxieties but Rheumatoid arthritis is actually an autoimmune disease that can hit at any age, any time! osteoarthritis is the old people one. And yes, this is why med school is NOT good for my hypochondriacism. NOT.GOOD.

    I need this fudge in my life.

  6. I am so happy to hear I’m not the only one who is a hypochondriac. I have headaches so often that I’m certain I have a brain tumor. (Really it’s just sinus allergies) And every time my knees and hips hurt, I’m certain I will need knee and hip replacements. (Really I’m just not active enough and need to lose a few pounds) I’m glad I’m not alone in this. And this fudge looks absolutely amazing. I WILL be making it this weekend! 🙂

  7. Brien27

    It’s really yummy! I thought I escape my meal because I feel a kind of emptiness when I see this delicious one… This is really delicious and I will try ito have it for my family…

  8. Lol, last night I was positive I was going into septic shock (uhhh, don’t ask) and then that I was having an allergic reaction. Meanwhile, my boyfriend continued to watch Family Guy like nothing was wrong while I was DYING IN HIS BED. It was awful. And then I woke up, saw this post about fudge, and suddenly, life has a silver lining… temporarily, of course, because later I’ll probably have a stroke or contract Restless Leg Syndrome or something.

  9. Bethany

    This looks scrumptious and I cannot wait to make it. I will need to find gluten free shortbread cookies, first, though. In that vein, I am curious as to how this would turn out using other citrus fruits. imagine, lemon fudge, orange fudge, grapefruit fudge……..I may give those a try after I make the lime version……I LOVE THIS WEBSITE!!

  10. yum, I must try this. And I always think the worst when I am sick. And lord help me when I have surgery, or in the hospital. Last time when I had a twisted bowel I was thinking open surgery and weeks of recovery. I was out in a few days, no surgery just lots of pain meds, but in my mind I was going to be in for at least a week, miss Christmas and you know, the worst. It’s just in our nature I guess. Oh and I cannot microwave white chocolate to save my life, I cannot figure out how to get the power to 50% ( I could look at the manual, but I never think of that when I am doing it) But I am way to lazy to use a double boiler, so lumpy chocolate it is for me.

  11. Whooooaaaaa- this looks super yummy. Isn’t the internet a great thing… for googling every ache and pain we have??? I totally diagnosed that I had gallstones that way… but I too am obsessed with the idea that something else is going on in every nook and cranny of my body!!

  12. This is too funny because I am the same way. I web md every little ailment and I always have either cancer or a stroke. Then I freak out even more because I’m sure I will die and leave my kids without a mom! My husband doesn’t get it…he just laughs at me even more:-) I’m pretty sure this awesome fudge is the cure all for my “sicknesses”!!!!

  13. Oh my gosh. As usual – this looks freaking amazing. My son would LOVE this! And if it makes you feel any better – whenever I complain about anything, my husband always tells me, in a very monotone voice, “You better get your affairs in order. ”
    And he’s a doctor.

  14. Nothing like watching a medical show where someone goes into the ER for a headache and ends ups dead by the end of the show. Yeah, I had to stop watching those shows too!

    This fudge looks amazing! Keep the goodness coming! Love your “That’s What She Said” blog too. You guys crack me up!!!

  15. Susan R.

    I had a brain tumor (mostly) removed last November and I can assure you that I did not become a genius. Nor do I bear any resemblance to John Travolta. Possibly one of the other sweathogs, though. 🙂

  16. I cannot watch ANY medical show for fear, I too, have that condition. You are not alone in your paranoia. Mine became ridiculous once I had kids! But nothing like some Spring-y fudge to put you in a brighter disposition! Thanks for sharing it!

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Shelly Hi! I’m Shelly and I’m an addict. Of the buttercream sort. I started this site a few years ago as a way to justify my sugary, buttery obsession with desserts. It has worked out well for me so far, because as it turns out you guys all love sugary, buttery desserts too! It feels good to know you're not alone, doesn’t it?

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