Mix all ingredients, spread between two sheets, place in the freezer for a few minutes, then cut into circles.
Choux pastry 60g water 60g milk 70g flour 55g butter salt 1 teaspoon sugar 2 or 3 eggs (depending on size)
Heat the water, milk, butter, salt and sugar in a saucepan. Remove from heat and add flour all at once. Mix well to dry out the dough for 2 to 3 minutes. Add the beaten eggs gradually, mixing well between each egg. Poach the choux on a baking sheet covered with a silpat micro perforated baking mat: one large choux and one small choux side by side. Place a disk of cracker on each puff. Bake at 170°C for 35 to 40 minutes. Leave to cool.
Heat the milk in a saucepan. In a bowl, combine the egg yolks, sugar and cornflour. Pour over the hot milk. Return to the saucepan and heat, stirring constantly, until the cream thickens. Add the milk chocolate, then the butter cut into pieces. Stir well, filter and chill.
Cut a hole in the bottom of each puff pastry and fill with pastry cream using a piping bag. Cover with fondant pastry using a ribbon tip and immediately apply the chocolate vermicelli to hold it in place.
I decorated them with paws made of black-colored sugar paste.