Instructions: Heat the oven to 350 degrees.

Cream together the sugar and the egg in the bowl of an electric mixer. Add the peanut butter and vanilla and beat until the dough is all one color.

Form the dough into 1-inch balls with the palms of your hands and place them on a baking sheet; do this in batches until all the dough is used. Press the tines of a fork twice on each cookie to make a crosshatch.

Bake the cookies until light brown on top and firm, 9 to 11 minutes. Let them cool on the baking sheet 3 to 4 minutes, then remove to a wire rack to cool.

This recipe yields 24 cookies.

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