Awesome and sweetie mouthwatering baked cookies that can be prepared in minutes.

To make the peanut butter filling, combine all the filling ingredients in a bowl using a whisk. Cover and chill the mixture until you are ready to fill the cookies.
To make the peanut butter cookies, in a bowl, sift together the flour, baking soda, and baking powder. Stir in the oats and salt. Set the dry ingredients aside.
In the bowl of an electric mixer with the paddle attachment, combine the butter, chunky peanut butter, and sugars and cream on medium-high speed until very fluffy and pale, at least 3 minutes, scraping down the mixing bowl as needed.
Turn the mixer to medium-low and add the eggs, one at a time, beating to incorporate each egg and scraping down the bowl as needed. Beat in the vanilla extract. Add the dry ingredients on low speed in 3 to 4 additions and mix until just combined. Do not overmix. Remove the bowl from the mixer and scrape down the bowl with a rubber spatula, going all the way to the bottom of the bowl to mix in the dry ingredients well.
Use an ice cream scoop to portion all the cookies in 1-ounce scoops (or use about 1 heaping tablespoon per cookie), placing the scoops on a parchment lined baking sheet. You should have about 48 cookies. (You can place all the cookies close together for the chilling step—you will space them for baking later.) Chill the scooped cookies for at least 2 hours or longer.
To make a cookie sandwich, turn one cookie flat side up and spread with a little less than 2 teaspoons of filling. (If you have a 1-ounce scoop, you can slightly underfill it to portion the filling or underfill a tablespoon.) Top with another cookie, flat side down, pressing gently. Repeat until all the cookies are assembled into sandwiches.
Ingredients
Directions
To make the peanut butter filling, combine all the filling ingredients in a bowl using a whisk. Cover and chill the mixture until you are ready to fill the cookies.
To make the peanut butter cookies, in a bowl, sift together the flour, baking soda, and baking powder. Stir in the oats and salt. Set the dry ingredients aside.
In the bowl of an electric mixer with the paddle attachment, combine the butter, chunky peanut butter, and sugars and cream on medium-high speed until very fluffy and pale, at least 3 minutes, scraping down the mixing bowl as needed.
Turn the mixer to medium-low and add the eggs, one at a time, beating to incorporate each egg and scraping down the bowl as needed. Beat in the vanilla extract. Add the dry ingredients on low speed in 3 to 4 additions and mix until just combined. Do not overmix. Remove the bowl from the mixer and scrape down the bowl with a rubber spatula, going all the way to the bottom of the bowl to mix in the dry ingredients well.
Use an ice cream scoop to portion all the cookies in 1-ounce scoops (or use about 1 heaping tablespoon per cookie), placing the scoops on a parchment lined baking sheet. You should have about 48 cookies. (You can place all the cookies close together for the chilling step—you will space them for baking later.) Chill the scooped cookies for at least 2 hours or longer.
To make a cookie sandwich, turn one cookie flat side up and spread with a little less than 2 teaspoons of filling. (If you have a 1-ounce scoop, you can slightly underfill it to portion the filling or underfill a tablespoon.) Top with another cookie, flat side down, pressing gently. Repeat until all the cookies are assembled into sandwiches.