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

Mix sugar, cornstarch together in top of double boiler. Add the 2 cups of water. Combine egg yolks with 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 and stir thoroughly. Pour into a deep (9 inch) pie shell and let cool. Cover with meringue and brown in oven.