Cream together sugar, butter and eggs.
Add remaining ingredients and mix well.
Pour into 2 pie shells. Bake at 350° for approx 45 minutes to 1 hour.
Beat egg whites until soft peaks form.
Gradually add 1 c sugar while still beating.
Add 3/4 t vanilla.
Spoon over cooked pies, sealing along edges.
Bake an additional 10 minutes at 400° or until meringue is golden.