Lime Sour Bars

2 cups flour 
4 tablespoons sugar 
1/8 teaspoon salt 
1/4 pound (1 stick), plus 2 1/2 tablespoons margarine 
4 eggs, beaten 
1 cup almonds, chopped 
2 cups light brown sugar, firmly packed 
3 cups sweetened flaked coconut 
3 cups powdered sugar 
4 tablespoons fresh lime juice 
3 teaspoons lime zest

Preheat oven to 350 degrees F. 
Combine flour, sugar, and salt in a bowl. Cut in margarine until mixture resembles coarse meal. Press crust into ungreased 10 by 15-inch baking pan. Bake for 15 minutes or until golden brown. 

Mix eggs, nuts, brown sugar, and coconut until well blended; spread over baked crust. 

Bake an additional 30 minutes or until set. 

While still warm, loosen the edges with a metal spatula. Mix together the powdered sugar, lime juice, and zest with a fork. Working quickly, spread the lime paste all over the top with a spatula while still warm. Let cool to room temperature and cut into bars. Cut 11 cuts crosswise and 3 cuts lengthwise.