Melt the butter. Stir it with a crumb of cookies and sugar, mix well and put 1/4 of the mixture in a bowl, tamp.
Dissolve the pudding in milk according to the instructions, let it stand for a few minutes, then pour 1/4 in cookies on each cookie.
Wash raspberries, dry and put on a pudding. Pour the rest of the pudding.
Sprinkle the remaining crumbs, garnish with berries and refrigerate for 30 minutes. Serve chilled.