- Preheat the oven to 225 degrees Fahrenheit.
- Line 2 cookie sheets with parchment paper. Set aside.
- Place the egg whites and cornstarch into the bowl of a mixer. Beat the egg whites with the mixer on medium speed for a full 5 minutes.
- With the machine running the entire time sprinkle in the confectioner's sugar a little at a time as you beat it at medium high for a full 10-12 minutes. When you lift the beaters, the meringue should hold its shape as a stiff peak off the tip of the beaters. It will be very shiny.
- Roll down the top of the Ziploc bag, 2 or 3 rolls. This will make a cuff on the outside of the bag.
- Using a silicone spatula, transfer the meringue from the mixing bowl into the bag.
- Unroll the cuff and twist the top a few times, to close the bag and force the meringue into the bottom of the bag.
- With your scissors, snip a small corner off of the bag. Squeeze 1 1/2 inch circles of meringue onto the cookie sheets. If it is coming out too slowly, snip the hole a little bigger.
- Place 3 chocolate chips into the center of each meringue.
- Top each cookie with a squeeze of meringue to cover the chocolate chips. If you squeeze slowly and then pull the tip up you will get a pretty top like a chocolate kiss.
- Place into the oven and bake for 2 hours.
- When the cookies are done, lift them off the parchment. If they stick at all, return them to the oven for another 30 minutes to finish drying out.
SOURCE: Kosher by Design: Kids in the Kitchen, by Susie Fishbein. Recipe reprinted with permission from Mesorah Publications.