Peanut Butter and Jelly Thumbprint Cookies

Instructions

• Sift flour, baking soda, and salt together in a bowl.
• Beat butter, peanut butter, white sugar, brown sugar, and vanilla together in a separate bowl with an electric mixer until light and fluffy, 1 to 2 minutes. Scrape sides of bowl with a rubber spatula. Add egg to butter mixture and beat on medium speed until blended. Scrape side of bowl down again.
• Beat flour mixture into butter mixture on low speed until just blended. Scrape bowl and mix a few more seconds.
• Scoop dough into 2 tablespoon-sized balls and arrange on a baking sheet. Cover baking sheet and refrigerate at least 4 hours (overnight is ideal).
• Preheat oven to 350 degrees F (175 degrees C). Line baking sheets with parchment paper and arrange cookie balls atop paper.
• Bake cookies in the preheated oven until partially cooked, 11 minutes.
• Place raspberry jam in a bowl and stir until syrup consistency.
• Press a soda bottle cap into the center of each cookie until edges of cookies bulge and begin to crack, making an indentation. Fill each indentation with about 1 teaspoon jam.
• Bake cookies until edges are lightly browned, 7 minutes longer. Cool cookies completely on the baking sheet before transferring to a wire rack.