“Compost” Cookies

September 10, 2010

Compost Cookie

I can’t believe it took me weeks to realise there was a block of chocolate nesting in my pantry! It’s the longest a chocolate bar has ever lasted in my house and a definite sign that there’s too much clutter in the cupboards…

A quick inventory revealed:

  • pop rocks leftover from a Redbull popping candy cupcake recipe
  • two ziplocked lumps of pink and yellow fondant from a cake decorating class held 4 months ago. Gross. Still need to blog about it, but the finished Exploding Star cake is up on Flickr
  • a box of mini wildberry weetbix from when we had houseguests. Two months ago.
  • a bag of oats I won in a competition. Last used for a breakfast muffin recipe.
  • almonds: natural. And blanched. And slivered. Gees….
  • fresh Jatz crackers from a wine & cheese movie night. Score! (and Hot Tub Time Machine is less lame than the name of the movie implies).

I just knew the best way to use all the (edible) scraps was to bake the infamous “Compost Cookie” dreamed by genius pastry chef Christina Tosi of Momofuku Milk Bar and “Crack Pie” fame.

As you might have guessed, this is a kitchen-sink kind of cookie: a basic vanilla cookie base to which you add a combo of whatever the heck you feel like. Potato chips, pretzels, M&Ms, twisties, caramels. You really can’t go wrong with these.

One of the things I learned from a course with pocket-rocket patissier Kirsten Tibballs was that 3 different textures is the key to a great dessert. I wanted my cookies to include squidginess (the base), crunch (chocolate chunks and nuts) and chewiness (dried fruit). I also wanted a nice balance of sweet and savoury.

Into my cookies went dark chocolate chunks, oats, crushed weetbix, crushed Jatz crackers, chopped dried dates and walnut crumbs. The end result is a super-yummo sugary, buttery, chewy cookie with hints of bitter dark chocolate and salty crackers cutting through the sweetness. I highly recommend baking these to make both your tummy and pantry happy.

Fess up time! What crazy things are lurking in your pantry and what kitchen experiments were they subjected to? Ever forgotten you owned something?

And if you’ve made Compost Cookies yourself, what is your signature “Compost combo”?

MOMOFUKU MILK BAR COMPOST COOKIE

Makes 18 large cookies

125g Unsalted Butter, room temperature
1 cup Caster Sugar
3/4 cup Brown Sugar
1 teaspoon Vanilla Extract
2 large Eggs
1 3/4 cup Plain Flour
2 teaspoons Baking Powder
1 teaspoon Bicarbonate Soda
2 teaspoons Salt
3 cups “compost”: anything you can think of e.g. chocolate chips, potato chips, pretzels, dried fruit
The Cake Mistress combo: Dark chocolate, Jatz crackers, oats, dates, walnuts, berry weetbix

Directions:

Place softened butter, caster sugar and brown sugar in the bowl of a stand mixer and beat on medium speed until pale and fluffy. Using the flat paddle attachment, mix in the eggs and vanilla on low speed. Scrape down the sides of the bowl with a rubber spatula.

Once mixed, crank the speed back up to medium-high and beat for 10 minutes. This whips the batter to a fluffy pale white almost double the original volume.

While the batter is beating, crush and chop up your “compost” mix.

When 10 minutes is up turn the speed down to low and mix in the flour, baking powder, bicarb soda and salt until the dough just comes together. Scrape down the bowl. Tip in your “compost” mix and beat on low again until just combined.

Line a tray with baking paper. Spoon tablespoons (or icecream scoops) of dough onto the tray, leaving a 3 cm gap between each one. Place in the fridge for at least one hour so the dough firms up. This is necessary to prevent the cookies from spreading too far when they bake.

Heat the oven to 200 degrees Celsius and bake for 10-12 minutes. The cookies will flatten, spread out and crack on the top. They are done when the cookies are browned on the edges and golden brown in the centre. Let them cool completely before trying to lift them off the baking sheet, as they are still soft when warm. Don’t worry, they harden as they cool.

Will keep in an airtight container at room temperature for up to 5 days.

(recipe by Christina Tosi. Spotted on The Amateur Gourmet, sourced from the Regis & Kelly website)


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  • So many yummy looking composts cookies have been popping up around the blogosphere… really tempting to make some myself!

    Thanks for the tip on the 3 different key textures. I’ll keep that in mind!

  • Wow they sound delicious and a great way of using up the leftover bits and pieces. Never had a cookie quite like that before. I recently disocvered a box of open peanut butter oreos I bought back from a trip to America. I didn’t want to eat them all too soon as you can’t get them here so I hid them to make sure I didn’t eat them in a week and then forogt about them. I was so annoyed with mysef when I discovered them.

  • They look super yummy, I would never have thought of putting jatz into a cookie. I never ever find exciting things like leftover chocolate or biscuits in my cupboards, they don’t last 5 minutes in my house.

  • These are such a great idea, I never would have thought to put jatz in a cookie. I never ever have yummy things like chocolate or biscuits left in my cupboards, they’re lucky to last 5 Minutes.

  • These sound delicious and I love the name. I also took a look at your Exploding Star Cake. It is AMAZING, you are soooo talented. I just wish I lived closer so you could make my next Birthday Cake.
    Thanks for the tip on the textures of desserts.

  • I’m yet to make these joyful cookies but I love seeing all the different variations. My chocolate/candy/lolly/etc section in the pantry is getting a little out of control so perhaps I need to follow in your delicious footsteps.

  • i don’t think i have any strange ingredients lurking in my pantry, i just have a lot! my mum keeps commenting on how much stuff I seem to stock up, speaking of which, i have everything to make this recipe!

  • Yay for composting :) Your cookies look like real cookies, mine came out really flat, but I think my combo or marhsmallows and crushed crunchie bar played a big part in the running and spreading! Your compost ingredients sound way too healthy though, c’mon, breakfast cereal and dried fruit and nuts? ;P

  • These cookies look yummy! I must admit, nothing sugary really lasts too long in my pantry – but I do have heaps of leftover bottles from cooking – fish sauce, oyster sauce, hoi sin, etc!

  • Isn’t it awesome when you rediscover something in your pantry! Especially if it’s chocolate :) Nom nom nom

  • You’re welcome. Let us know if you make some :)

  • ZOMG. Peanut Butter Oreos?????? I’d be bummed if I lost them too. Must hunt these down! Anyone in America want to do a cookie exchange?

  • The Jatz were interesting. A little extra saltiness but not much crunch. I reckon pretzels would be better.

  • Thanks Fiona! I’d love to make your birthday cake if you were in the neighbourhood :)

  • Excellent. Let me know if you bake these cookies. Would love to hear your version.

  • After seeing your gorgeous garden cupcakes there must be some awesome things in the pantry now. You’re good to have leftovers: admittedly I eat the unused lollies immediately, oops.

  • ha ha, didn’t even realise these have *ick* HEALTHY stuff in them. Next time, they will be calorie abominations!!!! Bwah ha ha.

    And your cookies looked great! Don’t know what you’re talking about :)

  • Hahaha…how wonderful, “compost” cookies!! I love recipes like this – thanks Emma! :)

  • These look fantastic! I have been meaning to make these for a while and just haven’t gotten around to it yet.

  • You’ve been to Kirsten’s classes before? She’s fabulous isn’t she? I learned the same thing from her – there’s always got to be balance in your textures… I’ve never made compost cookies before but if I did… I’d have peanut brittle and dried bananas.

  • Awww, you didn’t add the pop rocks to the cookies? :)

  • I love seeing others making compost cookies with different snacks! Yours look lovely and must taste delish!

  • CakeMistress, I’m inspired to make compost cookies this weekend. Never thought of making this kind of cookie until now. Thanks for sharing.

    - Kendra

  • ha ha. It was so tempting let me tell you. The sachets were sitting on the bench, calling my name, but I’ve had too many sad pop-rock experiences with the butter making my candy soggy. Didn’t want the anticipated party in my mouth to become a disappointment :(

  • She’s such a great teacher! She taught our French Entremet class and I learned so much from those few days.
    Ooh, now you have me dreaming of peanut and banana …. great suggestion Trissa!

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