1-1/3 C. ALL-PURPOSE FLOUR
1/2 TSP. BAKING SODA
1 STICK BUTTER
3/4 C. GRANULATED SUGAR
1/3 C. DARK BROWN SUGAR, PACKED
1/2 TSP. SALT
1 CUP CHUNKY PEANUT BUTTER
1 EGG
1-1/2 TSP. VANILLA
PREHEAT OVEN TO 325º.
LINE COOKIE SHEETS WITH PARCHMENT PAPER.
IN A MEDIUM BOWL, SIFT FLOUR AND BAKING
SODA.
IN A MIXER ON HIGH SPEED, BEAT BUTTER,
BOTH SUGARS AND SALT 1 MINUTE, UNTIL SMOOTH AND CREAMY.
ADD PEANUT BUTTER, EGG, AND VANILLA, BEATING UNTIL SMOOTH.
ADD FLOUR MIXTURE, BEATING UNTIL WELL COMBINED.
WRAP IN PLASTIC WRAP.
CHILL 4 HOURS.
ROLL TABLESPOONFULS OF DOUGH INTO BALLS.
PLACE ON PREPARED PANS.
BAKE 15-20 MINUTES, UNTIL GOLDEN.