Step by step instructions: How to make a Cook-in bag

You will need:

  1. 100% cotton material/fabric
  2. cord
  3. spring loaded ‘stopper’
  4. 2″ sheet foam and foam chips


You will also need:

  1. sewing machine (or needle)
  2. sewing thread
  3. scissors
  4. pins
  5. a pen with a top or a safety pin

Method [dotted red lines on photos show sewing line]

  1. Cut pieces according to pattern – outer, lining and cushions.
  2. Make a pocket along top and bottom of outer for cord. Fold under 0.5cm then approximately 2.5 cms. Pin and sew along top of this as close as possible to fold.make pocket
  3. Lay outer, right side down on work surface. Fold in half lengthways and mark centre point on both ends with a pin or chalk. Open up again.P1000949
  4. Do same with lining, then lay both flat, with wrong side of lining to outer’s wrong side, matching centre points at both ends.
  5. Fold under a 1.5cm seam allowance along top edge of lining, then shift it down by 2cm before pinning in place at both ends. By shifting the top edge down towards the centre you are making room for the foam to sit between the lining and outer. place lining
  6. Now flip lining up and keeping place marked, pin the right side of lining to wrong side of outer at same place pinned, all along length. sewing lining and outer
  7. Sew the seam.
  8. Place foam strip against the seam you just sewed and fold lining down over it. Turn under a seam allowance and pin as close as you can to the foam. Sew on top of the two layers of lining through to outer. Foam is now enclosed in fabric.enclosing foam
  9. Turn outer so that the right sides of both edges meet. Pin together the four layers of material as close to the foam as you can, matching centres and working outwards. At top and bottom of lining, make a small indented fold and pin ( you will have about 12 layers of fabric including fold and seams and outer/lining). Starting and finishing at seam for top and bottom pockets, sew edges together – you might find it easier to use a zipper foot to get close to foam. You can double sew this seam for extra strength.joining edges
  10. Turn right side out and you should have the outer finished.
  11. Thread cord through top and bottom pockets. Easiest way is to trap cord in  a pen top and push this through the pocket. Otherwise hook a safety pin through cord then push along pocket. You can stop the cord fraying by holding it briefly in a flame or wrapping the end with a piece of sticky tape. cord in pensafety pin for threading
  12. Now thread cord at top through ‘stopper’ and tie a knot in each end (to prevent it accidentally slipping back through stopper). At bottom of bag, tie knots in ends of cord then pull up and tie in place. [This end only needs to be opened in case of washing the bag]. A double stopper is much easier to thread!stopper threaded
  13. Make cushions: fold right sides together and starting halfway down the selvage side, sew round the three sides. Clip across the corners to ensure neat turning out. snip corner
  14. Turn cushion to right side (use closed scissors to push out corners) and stuff with foam chips (approx 180g for 13″ cushion and 220g for 17″ cushion) until about half full.                                           cushion
  15. Fold in remaining selvages to create flat seam and sew close to folds, continuing down length of cushion and around other two seamed sides for extra strength.close cushion
  16. Place smaller cushion in base of bag. Larger cushion tucks around top of pot placed in bag.