These little beauties are delicious and easy to make.   They are my favorite homemade cookie sandwich…so far.

For cookies:

1 stick (1/2 cup) unsalted butter, softened
1 1/2 cups chunky peanut butter (not “all-natural”)
1 cup packed light brown sugar
1 large egg
1 3/4 cups all-purpose flour
1 teaspoon baking powder
1/2 teaspoon salt

Preheat oven to 350°F.

Beat together butter, peanut butter, and sugar with an electric mixer until pale and fluffy, 2 to 3 minutes. Beat in egg, then remaining ingredients until a dough forms.

Arrange level tablespoons of dough 1 1/2 inches apart on 2 buttered baking sheets, then flatten in a crosshatch pattern to a 2 1/2-inch round with fork tines.

Bake in middle of oven until slightly puffed, 12 to 15 minutes. Cool on sheets 1 minute, then transfer cookies to a rack and cool.

For filling:

1.5 cups milk chocolate chips

1/4 c. cream or half and half

Melt chocolate into cream in a double boiler and stir until well mixed and creamy.

Assemble cookies:
Drop a teaspoon or two of chocolate ganache  onto the flat side of a cookie; top with  another cookie.  Repeat process until all  cookies have been made into sandwiches.  Drizzle cookies with leftover chocolate.