Here is a handwritten recipe card for Peanut Butter & Jam Bars, this recipe was in a box lot of old recipes, date unknown. I’ve typed it out below as-is.

Peanut Butter & Jam Bars
Serves: 3 doz. cookies

1/2 c. granulated sugar
1/2 c. packed brown sugar
1/2 c. shortening
1/2 c. crunchy peanut butter
1 egg
1 1/4 c. all-purpose flour
3/4 t. baking soda
1/2 t. baking powder
1/2 c. red raspberry jam
Glaze (recipe below)

Heat oven to 350°. Mix sugars, shortening, peanut butter & egg. Stir in flour, baking soda & baking powder. Reserve 1 cup dough. Press remaining dough in ungreased 13x9x2″ pan; spread with jam. Crumble reserved dough & sprinkle over jam. Bake until golden brown, about 20 mins. Cool. Drizzle with glaze. Cut.

Glaze

2 T. butter or marg.
1 c. powdered sugar
1 t. vanilla
1 – 2 T. hot water

Heat margarine over low heat till melted. Mix in powd. sugar & vanilla. Beat in hot water, 1 teaspoon at a time till smooth & of desired consistency.