1 cup butter
1 cup sugar
2 cups flour
1 tsp. lime peel
Mix in 1 cup finely chopped pistachios
Refrigerate batter one hour and roll to 1/4 inch.
Bake at 375 for 8-10 minutes
Drizzle with melted semisweet chocolate, or make a lime icing to pipe around the edges:
Beat together 1/4 cup softened butter with 2 1/2 cups confectioners sugar.
Add 2 T. milk and 1/2 tsp lime zest.