Ingredients

• 1/2 cup (1 stick) unsalted butter or margarine, at room temperature
• 3/4 cup granulated sugar
• 3/4 cup packed light brown sugar
• 1 cup smooth peanut butter, at room temperature
• 2 eggs
• 1 teaspoon vanilla extract
• 2 1/2 cups all-purpose flour
• 1 teaspoon baking soda
• 1/4 teaspoon salt

Instructions

1. Preheat oven to 350 degrees F. Lightly grease or spray cookie sheets.
2. Cream butter and sugars on medium speed until light, about 2 to 3 minutes. Add peanut butter. Mix well. Add eggs, one at a time, beating well after each addition. Blend in vanilla. Whisk together flour, baking soda, and salt. Stir into batter to make a soft dough. Form into 1 1/2-inch balls. Place on cookie sheets about 2 inches apart.
3. Bake for 10 to 12 minutes, until golden on the bottom. Leave on the cookie sheets for 2 minutes, then remove to wire racks to cool.