Ruffle Butt Onesie Tutorial


This Ruffle Butt Onesie by Char at Crap I’ve Made is so cute and definitely a one-of-a-kind gift.  Char gives easy instructions and pictures to walk you through this tutorial.


Baby bodysuit



Rotary cutter and mat or scissors

Sewing machine

Serger (Don’t worry, I’ll show you a couple of other options if you don’t have access to one.)

Measure the widest part of your bodysuit. This is a 6-9 month Circo brand (from Target). You can see it’s about 8″. You’ll want to cut your strips 2-3 times longer than this measurement. I’m going to do 2.5, just to be difficult.

Cut three 1.5″ strips of fabric. Make sure they’re 2-3 times longer than the width of the bodysuit.

Set your serger to a 3 thread rolled hem stitch. Run the long sides of the strips through the serger, right side up, letting the knife just shave of the edge of the fabric.

See? Not so bad! I press my strips because ironing *might* be my favorite part of sewing, but you don’t need to.

About 1″ down from the top of the leg holes, measure the width of the bodysuit again.

You’ll need 2 strips that are 2-3 times the length of your wider measurement and one strip that is 2-3 times the length of your shorter measurement plus. For my example, I cut 2 of my strips to 20″ (2.5 X 8) and one strip to 15″ (2.5 X 6).

Fold both ends of each strip under about 1/4″ and press.

Stitch down the ends you just pressed under.
Sew a long gathering stitch down the very center of each strip.

Set the strips to the side for a second. Find the center of the bodysuit. I use a very fancy method called “folding it in half”. Mark the center. I use pins. Put one up higher than your ruffles will be and one down lower.

Fold each strip in half and mark the center. Fold each half in half and mark that center, too. Again, I use pins.

You’re going to attach the center row of ruffles first. Line it up with the tops of the leg holes. Put a pin in the center and then 1/2 the way out on each side. Since my bodysuit was 8″, I put pins at the 4″ mark and then at 2″ and 6″ marks.

Pull your bobbin thread and gather your strip up a bit.

Now match up the pins on your ruffle to the pins on the bodysuit (excluding the really high one and the really low one). Pin the ends about 1/4″ from the side seams. Adjust the gathers evenly. I like to put even more pins in at this point to keep things from sliding around. Seriously. I think I use 9 pins per ruffle. See?

Sew down the center of the ruffle, right on top of your gathering thread. You really should remove the pins before you stitch over them, but I usually don’t.

Your first ruffle is attached now. Remember this is the center ruffle. Remove your gathering threads (you should be able to pull them out). You’ll notice that I hadn’t done this yet in the picture below.
To place your upper ruffle, follow the same steps, but line it up by placing the lower edge under your center ruffle, about 1/4″ from your stitching line.

2 down, one to go.
Attach the bottom ruffle the same way. Line it up by tucking the top edge under your center ruffle, about 1/4 from where you stitched the center ruffle down.

Trim all your threads and….

How cute is that??? What could be cuter?

I KNOW!!! (No, I did not put one of my boys in girl clothes….even if I have before….more than once…I borrowed a baby this time.)
So what if you don’t have a serger?
Option #1:
Cut your strips with pinking shears. I marked them out with a disappearing ink pen. Be sure to start down 1/2″ or so from the top so you can pink both edges of all your strips.

Attach the strips in the same way as the ones with the serged edges.
Here’s what it looked like before washing:

Here’s what it looked like after washing and drying:

I wasn’t really a fan of it…until it was on the baby. I have to admit, it might have been my favorite once it was on her.

Option #2:
Cut your strips 2.5″ wide. Fold over approximately 1/4″ on the bottom edge and hem. Then fold over 1/4″ on both ends and hem.
Mark your bodysuit like this:

The lines are 1″ apart with the center one being even with the tops of the leg holes.

Starting with the top line, put your ruffle right side down with the bottom of the ruffle towards the top of the bodysuit. Place the edge of the ruffle right along the top line.


Gather, pin, and sew about 1/4″ from the edge of the ruffle.

Do the middle ruffle next and the bottom ruffle last. You should end up with something like this:

This is when I sprayed my disappearing ink to get it to go away.
Press your bottom ruffle down (the direction you want it to end up).

Top stitch the ruffle in place.

Do the same to the middle ruffle and then finally the top one.

Seriously cute, right?

Huge thanks to Kari for having me guest post! Who knew I’d be so nervous about it?

Make sure to check out Char’s many amazing projects over at Crap I’ve Made!

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  1. says

    oh. my. goodness. I have had this on my “to do” list, but I have a boy so I’ll have to make it for a friend. It is adorable. Thanks for the tute on 3 different ways to do this. Great job!

  2. says

    I have a Brother 1034D. It’s basic and inexpensive and does everything I need it to. My husband bought it for me for my birthday a couple of years ago from Amazon. I believe he paid under $200. However, buying from Amazon voids the warranty, so keep that in mind.

  3. says

    Thank you for the very clear and helpful tutorial. I made two of these while my 5 month old baby girl napped this afternoon. It was so easy. I took your idea and just used basic ribbon (because I hate messing with seeming and I don’t have a surger) and it turned out great! I’ll definitely be making more (I want to try the frayed one!).

  4. says

    I had to laugh because I’ve put my boy into girls clothes just to see if they looked ok on, or to take a photo or two. There is no way he’d let me do it now- he’s almost 18! I might go and remind him how he used to be my model.

  5. says

    Hi. I love your blog, I honestly have to check it every day. I just bought an ironing board that (i think) is just like the one you show in this post. Did you make the cover for it, and do you have a tutorial for it? If so I would love if I could get it from you. Thanks very much! -angie migliori

  6. says

    I finally got around to making one and they are super cute. The only thing I did differently was use a knit stitch to sew down the ruffles (little jagged lighting bolt looking stitch). That way the ruffles stretch a little with the onesie.

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