I found this recipe a while ago, so thought I would use the excuse of friends coming round to try them out.
They are so simple and much better than the ones in a box! For added goodness add a sprinkle of seasalt on the filling, before sandwiching the biscuits together (thank you Olivia for that tip!) The recipe made about a dozen sandwiched cookies. But next time I will make the biscuits thinner, so I would only use a 1/2 teaspoon of cookie dough for each ball.
PS-keep in the fridge-in a sealed box-then it is more difficult for you to eat them all in one day!