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- Nonstick cooking spray
- 2 envelopes unflavored gelatin (4-1/4 tsp.)
- 3/4 cup cold water
- 2 cups granulated sugar
- 2/3 cup light-colored corn syrup
- 1/3 cup refrigerated egg white product or 2 pasteurized egg whites*
- 1/4 teaspoon salt
- 1 teaspoon rum extract
- 1/4 teaspoon ground nutmeg
- Nonstick cooking spray
- 2/3 cup powdered sugar
- 3 tablespoons cornstarch
- 4 ounces white baking chocolate with cocoa butter or vanilla-flavored candy coating, chopped
- White nonpareils
1. Lightly coat an 8x8x2-inch baking pan with nonstick cooking spray. Line pan with plastic wrap or line bottom of pan with waxed paper or parchment paper. Coat the plastic or paper with nonstick cooking spray; set pan aside.
2. In a large metal or heatproof bowl sprinkle gelatin over 1/2 cup of the cold water; set aside.
3. In a 2-quart heavy saucepan stir together remaining 1/4 cup water, 1-3/4 cups of the sugar, and the corn syrup until combined. Bring to boiling over medium-high heat. Clip a candy thermometer to the side of the saucepan (see Candy Thermometer, below). Cook, without stirring, over medium-high heat until thermometer registers 260 degrees F, (hard-ball stage) 12 to 15 minutes total. Remove from heat; pour over gelatin mixture in bowl and stir well to combine (mixture will foam up).
4. Meanwhile, in a clean large mixing bowl beat the egg whites and salt with an electric mixer on high speed until foamy. Gradually add remaining 1/4 cup sugar, 1 tablespoon at a time, until stiff peaks form (tips stand straight), 3 to 4 minutes. Beat in rum extract and nutmeg until combined. With the mixer running on high speed, gradually add gelatin mixture to egg white mixture, beating about 7 minutes or until thick (like the consistency of thick, pourable cake batter). Quickly pour marshmallow mixture into prepared pan, spreading to edges of pan. Lightly coat another piece of plastic wrap with nonstick cooking spray; place, coated side down, over marshmallow mixture. Let stand at room temperature for 1 to 2 hours until firm.
5. Remove plastic wrap from top of marshmallows. In a small bowl combine powdered sugar and cornstarch; sprinkle about a quarter of the mixture evenly onto a large cutting board. Loosen sides of marshmallows, if necessary, and carefully invert onto the cutting board. Remove plastic wrap or paper. Sprinkle top with some of the remaining powdered sugar mixture. Using a knife that has been dipped in warm water, cut square into 20 marshmallows. Place squares, a few at a time, in a large resealable plastic bag. Add remaining powdered sugar mixture; seal bag and toss to coat all sides of marshmallows with powdered sugar mixture.
6. In a small saucepan, cook and stir white chocolate just until melted. Let stand 5 to 10 minutes or until cooled but not set. Spread in a thin, even layer over the top of the marshmallows. Top with nonpareils. Store marshmallows between sheets of waxed paper or parchment paper in an airtight container in the refrigerator for up to 1 week. Or freeze for up to 1 month. Bring to room temperature 30 minutes before serving. Makes 20 large marshmallows.
- Be sure to look for a product that is just egg whites.
- If you cannot find pasteurized egg whites, you can use regular eggs and pasteurize the egg whites: In a small saucepan stir together 2 egg whites, 2 tablespoons granulated sugar, 1 teaspoon water, and 1/8 teaspoon cream of tartar just until combined but not foamy. Heat and stir over low heat until mixture registers 160 degrees F on an instant-read thermometer. You may see a few pieces of cooked egg white in the mixture. Remove from heat and place saucepan in a large bowl half-filled with ice water. Stir for 2 minutes to cool mixture quickly. Place egg white mixture in the large mixer bowl. Continue as directed in step 4.
- Cooking to the correct temperature is crucial when making most candies, ensuring toffees turn out crunchy and caramels stay chewy. Our Test Kitchen prefers a digital thermometer with a clip to attach it to the side of the pan. Before making candy, always calibrate the thermometer per manufacture's instructions.
- Servings Per Recipe 20,
- cal. (kcal) 158,
- Fat, total (g) 2,
- sat. fat (g) 2,
- carb. (g) 35,
- sugar (g) 30,
- pro. (g) 1,
- sodium (mg) 40,
- Potassium (mg) 1,
- Other Carb () 1,
- Percent Daily Values are based on a 2,000 calorie diet