1 baked pie shell
1 1/4 c. sugar
6 tbsp. cornstarch
2 c. water
1/3 c. lemon juice
3 eggs, separated
2 tsp. vinegar
3 tbsp. butter
1 1/2 tsp. lemon extract

Mix sugar and cornstarch together in top of double boiler. Add 2 cups water. Combine egg yolks with lemon juice and beat. Add to rest of mixture. Cook until thick over boiling water for 25 minutes. This does away with starchy taste. Now add lemon extract, butter, and vinegar; stir thoroughly. Pour into a deep 9 inch pie shell and let cool. Cover with meringue and brown in oven.