The “jelly” in this cookie sandwich is actually a raspberry cream cheese frosting made with raspberry jam.
Raspberry Cream Cheese Frosting
Preheat the oven to 325ºF and line 2 baking sheets with parchment paper.
Whisk together the flour, baking soda, baking powder and salt in a medium bowl and set aside.
In the bowl of stand mixer, cream together the butter and chunky and smooth peanut butters. Add the brown and granulated sugars and beat for 3 minutes. Add the eggs 1 at a time, beating for 1 minute after each addition. Add the flour mixture and mix until just combined.
Put some granulated sugar in a bowl. Scoop 1/4-cup balls of dough into the bowl, roll the dough in the sugar and transfer to the prepared baking sheets, pressing each cookie flat with a fork. Bake until the edges are golden brown, 8 to 11 minutes. Let cool completely before filling with frosting.
Cream together the cream cheese, butter, jam and salt in a bowl with an electric mixer. Add the powdered sugar and beat until soft and creamy.
Spread approximately 2 tablespoons of frosting on one side of a cookie and sandwich together with another cookie. Repeat with the remaining ingredients.