Avogadro’s Chocolate Cupcakes

April 24, 2008 at 5:56 PM | Posted in blog event, cupcakes | 39 Comments
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Ok. I admit it. I am a nerd. Actually to be specific – I am a science nerd.

I majored in biology in college but was also considering double majoring in chemistry. I think its in my genes. My mom has a masters in Chemistry and my dad has a PhD in engineering. Too bad that most of their smart genes went to my brother, the doctor. LOL. Thats how my parents introduce him to their friends, my son… the doctor. Good thing we get along really well or I’d wanna kick his arse.

But being the black sheep has its perks. I think a black sheep means that you aren’t tied down to parental expectations and I love the freedom I have with my parents when I come up with quirky ideas. They just inadvertently roll their eyes, nod their heads and continue to think silently there must have been a mix up at the hospital.

Let me try to explain for you non-science people (like my history nerd husband) what exactly Avogadro’s number is. Its the number of atoms in exactly 12 grams of 12Carbon. The mass unit, mole, is defined as this number of “entities” (atoms or molecules) of any material. The value for this number is:

NA = 6.0221415 x 1023 mols-1

If you are a nerd like me you’ll already be laughing at the name of my new cupcake once you see that one of my cupcake ingredients is avocado. I use to make my college classmates laugh by saying “Avocado’s number” during study groups. Lame? Well I guess you just had to be there… *shrug

What can I say… we’re science people. Thats the best we got. LMAO

Now I know what you are thinking… Whaaaaaaat? Avocado in a cupcake? But bare with me. In many Asian cultures avocados are mixed with milk, sugar, coffee and/or rum to create sweet, not savory, dishes.

“…although the avocado is best known for its staring roll in guacamole, this multifaceted culinary actor can also take on rolls usually played by eggs, butter, and even shortening. The results are delicious, healthy, and very green.”
~ Alton Brown

(Recipe adapted from Cupcake Bakeshop & Alton Brown | photos from me!)

Makes about 15 cupcakes


For chocolate cupcakes
1/2 cup (1 stick) butter, room temp
1-1/4 cups sugar
2 large eggs, room temp
3/4 cup flour
1/2 teaspoon baking powder
1/4 teaspoon baking soda
1/4 teaspoon salt
1/2 cup unsweetened cocoa powder
1/2 cup milk
1 teaspoons vanilla

For frosting—
4 ounces avocado meat, approximately 1 small to medium
1 teaspoon freshly squeezed lemon juice
1/2 pound powdered sugar, sifted
1/4 teaspoon lemon extract

[NOTES: You could probably 1/2 the frosting recipe b/c I had a good amount left over after frosting 15 cupcakes.]


To make cupcakes
Preheat oven to 375 degrees.

Beat butter until softened. Add sugar and beat until light and fluffy, about 3 minutes. Add eggs, one at a time, beating until well combined.

Measure the flour, baking powder, baking soda, salt, and cocoa powder into a small sized bowl and whisk to combine. Measure out the milk and vanilla and stir to combine.

Add about a third of the dry ingredients to the butter/sugar and beat to combine. Add about a half of the milk/vanilla and beat to combine. Continue adding, alternating between dry and wet and finishing with the dry.

Scoop batter into cupcake cups about 2/3 full. Turn oven down to 350 degrees and bake cupcakes for about 22-25 minutes or until a cake tester comes out clean.

To make frosting
Peel and pit the avocado. Place the avocado into the bowl of a stand mixer fitted with the whisk attachment along with the lemon juice and beat until lightened in color, approximately 2 to 3 minutes. Add the powdered sugar a little at a time and beat until smooth. Add the lemon extract and mix to combine. If not using right away, store in the refrigerator.

To assemble cupcakes
Use a 2-1/4 inch diameter cookie cutter and dollop about 1 tbsp frosting inside. Spread the frosting the edge of the cookie cutter. Give the frosting a couple seconds to set before pulling the cookie cutter slowly away to create the shape. Garnish with chocolate jimmies*.

Click image to enlarge

[NOTES: The frosting isn’t thick like buttercream so I compared it more to icing.]

* My jimmie revolutionist friend, Nikki, has brainwashed re-educated me that “jimmies” and “sprinkles” are VERY different! Please feel free to read her thesis and enlighten yourself.


Husband rating: A
I didn’t tell him that it was avocado until after he finished. After he found out it was avocado, he was impressed that it tasted pretty good but his sweet tooth prefers cream cheese frosting more than this healthier alternative.

Wifey rating: A
The “cake” is moist and chocolate-y goodness. The frosting reminds me alot of kiwi with a little kick of sweet avocado aftertaste. It compliments the chocolate as a lighter, healthIER frosting compared to a buttercream – b/c it replaces the butter. I can definitely see making this again. Halloween maybe? Can you say avocado frosting slime? LOL


My veggie loving friend, Nina, hosts the weekly Vindicate the Vegetable Challenge. As luck would have it, this week’s vegetable is avocado. Score! I love 2fors! LOL. She’s in for a doozy with this recipe huh? But honestly, you know she’s gonna get a lot of guacamole recipes. I gotta stand out somehow, right?!! ;)

Need some motivation to eat more veggies? Definitely go check out the VTV blog.



  1. you’re crazy nft

  2. NIKKI, what? not feeling avocado? Its actually very good… No fooling!

  3. Perhaps I’m wrong, but I thought Avogadro’s number was 6.03 x 10^23. I have a statistics degree, but that’s only because after taking all my biology and chemistry classes I just couldn’t pass physics and gave up on medical school. I’m a nerd, just not a super smart one!

  4. Oh and the cupcakes are super cute and I’ve always wondered about avocado in a dessert!

  5. MARY, oops! I am not sure what I was thinking on the power of 10 exponent. I think I got easily distracted by the units superscript! You are totally correct. I guess I can see why I never made it to med school with my 1/2 brain. HAHA.

  6. bahahaha my thesis on Jimmies. I plan to re-educate the WHOLE WORLDDDDDDDDDDDDDDDDDDDDDD

  7. NIKKI, I have been very well educated on the subject of jimmies from a wiser one than me. Just wanna pass on the knowledge ;)

  8. omg I am alll about sweet avocados!
    My best friend growing up was Brazilian, and she used to make me avocado milk shakes. soooo good.
    And I have been planning since January to make my roommate an avocado cake for her birthday in June! Ever since she pitched to me her idea of starting an avocado club at school… where all they would do is eat avocados bought by their club funds.
    Ahhhh avocado love….. <3
    So yeah, your icing looks amazing to me.

  9. You know you’re really a nerd when you celebrate Mole Day. Or, come to think of it, when you know Avogadro’s number to 7 DIGITS PAST THE DECIMAL. Seriously CB!
    And what is it about people attempting brainwashing when it comes to jimmies? I had friends in college who did the same thing…

  10. That’s awesome. I LOVE avocados but haven’t ever put them in a cupcake. Will definitely have to try that.

    I just had a post in my blog about Avogadro’s number as well – check it out: http://beantownbaker.blogspot.com/2008/04/way-to-nerd-that-up.html

  11. You are seriously such a nerd. I think you just beat out my nerdy engineer husband for nerdiest (is that a word??) on this one. Good thing I love you both. :)

  12. ALLISON, ooohhh avocado milkshakes! That is so cute about the avocado club. You’ll have to let her know about the avocado frosting. I bet she’ll get a kick out of it!

    CAITLIN, ok. seriously. mole day? BAHAHAHA! I am not sure whats up with the jimmie revolution. I think Nikki was telling me it was a big deal in MA but in CA we don’t give a shiz. Its all sprinkles ;)

    JEN, oh that is crazy! I remember reading that post before (I commented!) and it must have subconsciously stayed with me when I titled my avocado cupcakes!

    APRIL, now wait a minute. More nerdy than your hubs? Let’s not get crazy! LOL. ps. nerdiest is a word. I looked it up in the dictionary. ;)

  13. How interesting. I saw some recipes for avocado pie that looked like they could be good… maybe I’ll have to try them now… Thanks for entering VTV!

  14. NINA, I love when ppl say “interesting” b/c that means that are semi-grossed out and don’t really know what to say. LOL.

  15. I love avocado bubble tea, so I’ll have to try these! And I’m def showing this post to math/science/engineering nerd hubby! I’m sure he’ll get a kick out of it :D

  16. KRISTINA, let me know what hubs thinks. I read it to T and he was just indignant that I called him a nerd. He is TOTALLY a history nerd. utterly and completely. Ask him dates, ppl’s names, wars, etc he knows it. Its crazy!

  17. I so want to try this frosting now but I’m not sure I would want it on a cupcake. I prefer cupcake frosting to be eye watering sweet :) Maybe it would too over like a bread roll? Like cream cheese frosting on cinamon rolls, I could make some sweet bread and drizzle this over the top for a sugary breakfast!

  18. BB, oohhhh that totally works! Avocado icing rolls… You and my hubs are the same. He wanted sugar-rush sweet frosting. Ah well. I tried…

  19. This is fascinating, absolutely fascinating! I’m not a science nerd AT ALL…but I love the green and black, it looks hot!

  20. NATALIE, me too! I love the chocolate and green. Initially I wasn’t sure what I wanted to make with the avocado frosting but I figured if it looked pretty it could work right? LOL

  21. Very creative idea. Strange. But creative!

  22. GRETCHEN, definitely strange but somehow it works. ;)

  23. […] I Heart Cuppy Cakes […]

  24. Oh lord~ I’m an avocado FREAK! I also happen to be a nerd, hmmmm. Coincidence??
    Anyways, I totally tried to pull off an avocado cupcake. Complete FAIL. I tried to recreate my fave smoothie- pear and avocado. I swear one of these days I will conquer that damn cupcake! And now I have you rubbing my face in it~ ack, the pain!

  25. TW, sorry sorry! but honestly it sounds like your combo is WAY more complicated than mine. I look forward to seeing your success soon! :)

  26. I often visit your site. Thanks for the great recipes!

    Anyway, avocado is in season here in the Philippines(summer time here) but I’m afraid of doing what you did. But since you gave this recipe an A rating, I might as well try it sometime soon.^_^

  27. NEJ, honestly its pretty tasty. Its not overly sweet like regular frosting but for a healthiER version its pretty darn good! Definitely let me know what you think! :)

  28. Wow…I think I have met my fellow “nerd” match. I, too, have a Biology Degree and couldn’t quite make the cut for med school. BUT, my parents still view me as the smart one so that always makes me feel good. Not practicing Chemistry or Biology anymore myself…so baking is my sweet addiction to feel like I am still in the chemistry lab…but with a MUCH better smell I might add. BTW, I *heart* Avacado…and happen to love that you call these Avagadro. :) So fun! I totally get it…
    Thanks for this, can’t wait to give it a try!

  29. COURTNEY, w00t! for science nerd twins! I knew I couldn’t be the only one out there. Glad you get it! Definitely much rather being in a “kitchen lab” than a chemistry lab. Eesh! I still get nightmares about some smells. LOL.

  30. YES! I totally agree about the nightmares…. Ethyl Ether still rings a bell…and I no longer am able to truly enjoy a Kalamata Olive due to the Formaldehyde taste….what a shame! LOL! Chemistry is probably why we get a kick out of baking…b/c baking is pure science. :)

  31. COURTNEY, haha. formaldehyde taste! Maybe thats why I don’t like olives too? I definitely love baking more than cooking and you may have hit it on the nail about the science part of baking being the reason. ps. Do you have a blog?

  32. NO! I don’t have a blog. *Sigh*, other than my myspace blog no (if that even counts :) )… just envious of all these cupcake blogs I was browsing today! Honestly, my sister forwarded me a baking blog site yesterday and somehow have stumbled on yours. I really only bake for fun, and have NO formal training other than watching the foodnetwork every chance I get. Self taught has become quite interesting but also a guilty pleasure of mine over the years. Not bad, considering my mother can’t manage to even cook from a box! So like you…there was probably a mix up at the hospital. :) LOL!

  33. COURTNEY, Nothing wrong with “self-taught”. Thats me all the way. No formal training either unless you count the Wilton cake classes I’ve taken. I started my blog on a whim 5 months ago and its been an amazing journey, meeting other cupcake nerds like you and me. ;) If you start one, you’ll have to let me know!

  34. I will certainly do that! I found yours (actually through various clicking) but you are on http://www.cupcakeblog.com on the side. My girlfriend and I were thinking of doing the Wilton classes for fun this winter. Michigan Winters are long and drawn out so…this might make the time pass. :) Thanks for the inspiration! Can’t wait to try some of your recipes. P.S. My hubby thanks you for ‘that’. :)

  35. COURTNEY, very cool! Cheryl from cupcake bakeshop is my cupcake idol so I am so flattered that I am on her blogroll :) I would definitely recommend the Wilton classes. I learned alot! Glad your hubs appreciates… my hubs curses the day I got addicted to cupcakes. He’s gained 10lbs! haha!

  36. Hi..I really enjoyed going through your blog, and will definitely be making this one again.

  37. CHOCOLATE, aaawww thanks for the sweet compliments! If you make it let me know what you think! :)

  38. Haha! I used to do a very similar thing! I had a chem teacher called Mr. Allevado, so we called it Allevado’s Number!

  39. AMY, Mr. Allevado is way too easy! haha.

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