
All levels
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1 hour 4 min
01:16
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01:53
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21:14
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03:10
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09:05
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08:22
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03:01
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08:41
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03:38
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04:23
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This class will be available to view on September 24, 2025.
Learn how to:
The granny square sweater is a staple of the crochet world. It’s iconic, it gives the coziest vibes, and it’s approachable for all levels of crocheters. Once you know how to crochet granny squares, turning them into a cardigan is a snap. In this class, crochet designer and author Twinkie Chan teaches you how to crochet a comfy, oversized granny square cardigan that feels like taking your favorite blanket with you everywhere you go. Begin by learning the basic granny square, which is made of double crochet stitches and chains. Then you'll learn two different ways to invisibly connect your squares - the "Join As You Go" method and the mattress stitch – and how to assemble panels of squares into a cardigan. You’ll finish with ribbing on the cuffs and hem. Twinkie designed this cardigan to be long, loose, and slouchy, but the pattern and process are so versatile that you can easily make your cardigan shorter or smaller. You can leave the sleeves free and uncuffed, and you can even swap in any kind of crocheted square that you like.
Here’s what you’ll need:
- Worsted weight yarn - can be any variety of brands and colors - see pattern for yardage for your size
- Crochet hook for granny squares: choose a hook that allows you to obtain proper gauge. For Twinkie, that is an H8/5.0mm hook
- Crochet hook for hem ribbing: choose a hook size that is one size smaller than above, which is a G hook for Twinkie
- Crochet hook for sleeve ribbing: choose a hook size that is at least two sizes smaller than the above, which is an F hook for Twinkie
- Ruler or small measuring tape
- Scissors
- Tapestry or yarn needle
- Optional: stitch markers to use as pins, blocking tools, such as blocking mats, T-pins, and a spray bottle
- Optional: A drawing program or scratch paper and coloring tools to design your color scheme and choose your yarn
- PDF download (below)
Downloads:
- Crochet a grannny square
- Assemble granny squares into a cardigan
- Join granny squares with the "Join As You Go" method and mattress stitch
- Work single and double crochet stitches
- Make ribbed cuffs and hems






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