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How to Make a Faux Pastry Bag

By Cook's Illustrated Published November 2011

If you want to make a recipe requiring simple piping—but you don’t own a pastry bag and tips, a zipper-lock bag can be fashioned into a substitute.

If you want to make Paris-Brest (related)—or another recipe requiring simple piping—but you don’t own a pastry bag and tips, a zipper-lock bag can be fashioned into a substitute. For Paris-Brest, you’ll need two bags, one with a ¾-inch-wide opening (to approximate the star tip) and another with a ½-inch-wide opening (to approximate the round tip).

1. Measure desired width diagonally across 1 bottom corner of zipper-lock bag. Use pen to mark bag at both ends of line.

2. Cut from 1 mark to other in slight arc shape to create circular opening. Fill bag with contents to be piped.

3. While squeezing bag with 1 hand, use other hand to guide contents onto baking sheet.