If you’re looking for a cute first Halloween outfit look no further. Who can resist an adorable baby and cookies? Especially if you have a chunky baby like mine. You could adapt it for a little boy by putting him in pants and a hat instead of the tutu and headband. This outfit is super simple to make, I am not good at DIY and was able to easily create this look. You can grab a printable version of the directions with a guide for the pieces at the bottom of the page.

diy cookie monster costume

Directions and guide are for personal use only and may not be used for commercial purposes.

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What do you need:

  • One plain royal blue onesie available on Amazon. (Be sure to check the weight range before choosing a size)
  • Royal blue tutu available on Amazon (you can google online how to make your own but purchasing one only costs a few dollars more. So if you’re like me and aren’t a DIY guru buying is easier)
  • 3 pieces of felt: one brown, one black, one white (I purchased them at Michaels)
  • Fabric glue
  • Optional: A ruler and a sharpie marker



  • Wash the onesie before you start as you can only gently hand wash it once you’ve glued the pieces on.
  • Measure your babies chest if you like. Mine was about 5 inches across so I decided to make the eyes about 1.5 in each.
  • If you can find an object in your house to use as a guide…I used the inside of one of her stacking rings.
  • Use the sharpie to draw a guide for the eyes on the white felt. You’ll glue this side down so the marks won’t show.
  • With the black felt cut two small circles to use for eyeballs
  • Cut a mouth using the black felt. I made the mouth about as wide as the two eyeballs combined
  • Next up is creating the cookies. I made them the same size as the eyeballs. Cut them out of the brown felt.
  • For the chips just cut some black felt into small pieces and glue them onto the brown felt circles.
  • To make the eaten cookies take a few of the brown circles and cut a bite into one side before adding the chips (no need to glue chips onto a piece you’ll be cutting off)
  • Looking for a guide? Click “Get the guide” at the bottom of the page. You can glue the pieces to the felt and just cut around them.
  • Now you’re ready to start combining it all. (Place a piece of cardboard in the onesie before you start gluing so it won’t end up glued shut.) Glue the eyes to the onesie followed by the mouth.
  • To make it extra cute glue a half eaten cookie near the mouth. When you’re done the onesie should look like this.
  • Glue as many cookies to the skirt as you like. These tulle skirts are great as you can easily trim them to the length you like. Use a mix of whole and eaten cookies on the skirt. (Put something under the tulle before gluing on the cookies so you don’t glue the two sides of the skirt together.
  • Once it all dries your ready to take some pictures of all this cuteness!

diy cookie monster costume

Bonus headband

If you want to add the headband simply make one extra cookie and glue it onto a headband. I used one I already had in my drawer. You could use a blue, white, or black headband and they would all work with the outfit.


Want a guide to making your own?


Rather buy one pre-made? Check out my cookie monster costume on Etsy.

cookie monster costume

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