Peanut Butter and Jelly Sandwich Cookies

Ingredients

• 1 stick (8 tablespoons) unsalted butter, at room temperature
• 1 cup peanut butter
• ¾ cup brown sugar
• ¼ cup sugar
• 1 egg
• 1 teaspoon pure vanilla extract
• 1¼ cups all-purpose flour
• 1 teaspoon baking soda
• ½ teaspoon salt
• 1 cup jelly or jam (we like strawberry)