I just made these to take to a party at Marilyn's. I use the same recipe for my lemon bars - I just add fresh lemon juice rather than lime.
Crust:
2 1/4 cup flour
1/2 cup powdered sugar
16 tablespoons of butter, melted
To prepare crust combine flour and sugar. Add butter and mix well. Press into 12x15 baking pan.
Bake at 350 degrees for 15 minutes.
Filling:
4 eggs
1/4 cup fresh lime juice
2 cups of sugar
1/4 cup flour
1 teaspoon of baking powder
To prepare filling, beat eggs with fork. add lime juice and mix well.
Combine dry ingredients and add to egg mixture. Beat. Pour over crust. Bake at 350 degrees for 25 minutes. Cool and sprinkle with powdered sugar. Cut into squares and serve. These cookies freeze well.