Melt-In-Your-Mouth Marshmallows(Microwave)  
["1 3/4 c. Diamond walnuts", "2 envelopes unflavored gelatin", "1 1/4 c. water, divided", "2 c. granulated sugar", "2 tsp. vanilla", "powdered sugar"]
["Chop walnuts fine.", "Sprinkle about 1 cup evenly in 9-inch square pan.", "Set remaining walnuts aside.", "Combine gelatin and 1/2 cup of the water in measuring cup; set aside to soften.", "In 2-quart glass measuring cup with handle, combine remaining 3/4 cup water and sugar.", "Microwave at High for 5 minutes.", "Stir well until sugar dissolves.", "Microwave at High for 7 to 8 minutes or until mixture reaches 234\u00b0.", "Stir in softened gelatin; let stand until slightly cooled (about 130\u00b0).", "Stir in vanilla. Empty mixture into large bowl of electric mixer.", "Beat at high speed until mixture is very fluffy and increased 4 to 5 times in volume, about 12 to 15 minutes.", "Turn into walnut-coated pan and sprinkle remaining walnuts on top.", "Let stand at room temperature several hours or overnight until mixture is firm and set.", "Use a sharp knife dipped in powdered sugar to cut mixture into 1-inch squares. Roll sides in walnuts remaining in pan and additional powdered sugar, if desired.", "Makes about 1 1/2 pounds."]
["walnuts", "unflavored gelatin", "water", "sugar", "vanilla", "powdered sugar"]