Some helpful tips for making rosette cookies:
- Use a thermometer specifically made for the high oil temperatures. A deep fry thermometer that can remain in the oil works best, so you can continually monitor the temperature and adjust as needed.
- Use oil that will withstand the high temperature for prolonged periods of time, such as canola or peanut oils.
- Season the molds before using for the first time. Following the basic instructions in our Seasoning tutorial, you'll get the best results by putting them on a pan or cookie sheet in the oven, or, alternately, by keeping them dipped in 350°F oil for about 15 minutes.
- When using shell-type rosettes, leave the mold in the batter long enough to give the cup a chance to form. It must be solid enough to fill with your favorite garnishment.
- To make crispier rosettes, cover and refrigerate the batter at least 2 hours before using.
- Important: Do not cover entire mold with batter, or the cookie will get stuck on the mold. Only allow the batter to cover 3/4 of the way up the mold.
- If excess batter adheres to the top of the mold, use a knife to remove the excess, then cook as usual.
- If the batter does not adhere to the mold, check the temperature of the oil. For best results, keep the oil at 365°F.
- Rosettes can be stored in airtight containers for months. They also can be frozen, ready for any occasion. If needed, re-crisp in minutes in a 300°F oven.
These cookies freeze really well too.