Vinegar Pie - cooking recipe

Ingredients

3 egg yolks, beaten
1 c. sugar
1/4 tsp. salt
1 3/4 c. boiling water
1/2 c. cider vinegar
1/4 c. cornstarch
1/4 c. cold water
1 tsp. lemon extract

Preparation

Beat egg yolks.
Add 1/4 cup water, vinegar, salt and sugar. Stir into boiling water until thick on moderate heat.
Add lemon extract.