To stay "on topic" here is the recipe for vinegar pie which my Mom (she's in her 70s so it counts as vintage by that alone ;) ). Since I'm not sure if the handwriting on the recipe card she gave me would scan well, I'm retyping it here.

Vinegar Pie
1/2 C + 2 tbsp  Butter
1 1/4 c  Sugar
2 tbsp  Vinegar
3  Eggs
1 tsp  vanilla
1 unbaked 8" pie shell

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