Old Time Vinegar Pie - cooking recipe

Ingredients

3 Tbsp. vinegar
1 c. sugar
4 Tbsp. flour
1 c. boiling water
2 egg yolks
1 Tbsp. butter

Preparation

Mix flour with half the sugar and add boiling water.
Cook in double boiler for 15 minutes, stirring often.
Add rest of sugar and beaten egg yolks; cook a few minutes longer.
Add butter and vinegar.
Flavor with lemon extract (if desired) and cool.
Pour into baked shell and meringue.