Pistachio Meringues

Preparation

1. Step 1

   Preheat oven to 225°F. Line 2 large baking sheets with aluminum foil; butter and flour foil. Mix chopped pistachios and 1/2 cup powdered sugar in small bowl to blend. Beat egg whites and 1/4 teaspoon cream of tartar in medium bowl until soft peaks form. Gradually add 2/3 cup sugar, beating until whites are stiff but not dry. Fold nut mixture into egg whites. Drop meringue onto prepared sheets by rounded tablespoonfuls, spacing 1 inch apart and spreading to form 2 1/2-inch rounds.

   Step 2

   Bake meringues until dry and almost crisp but not yet colored, about 45 minutes. Cool meringues on baking sheets. (Can be prepared 1 week ahead. Wrap airtight in foil and freeze.)