Lemon Pie - cooking recipe

Ingredients

1 1/2 c. sugar
1 tsp. lemon rind
1/4 c. lemon juice
3 egg yolks
1/2 c. flour
1/4 tsp. salt
2 c. water
1 Tbsp. butter

Preparation

Mix all ingredients except butter.
Add butter after it boils and gets thick.
Put in cooked pie shell and make meringue.