For the choux pastry, bring milk, 125 ml water, butter and 1 pinch of salt to the boil in a saucepan. Stir in flour and baking powder with a wooden spoon with a hole and stir until the dough comes off the bottom of the pot as a lump.
Put the choux pastry in a bowl. Stir in 1 egg and let the dough cool down a bit. Stir in the remaining 3 eggs one after the other.
Put the dough into a piping bag with a large star-shaped spout. Spray a total of 8 large cream puffs onto two baking trays lined with baking paper. One after the other in a preheated oven (electric cooker: 225 °C/circulating air: 200 °C/gas: see
manufacturer) bake for about 25 minutes. Remove the cream puffs from the oven, cut them open immediately with scissors and let them cool down.
For the filling 2⁄3 Put the meringue in a freezer bag. Finely chop with a pastry roll. Whip cream until stiff, fold in meringue. Pour cream into a piping bag with a large star-shaped spout. Ca. 2⁄3 Spread the grits in the cream puffs.
Spray cream on top. Spread the rest of the porridge on top. Crumble the rest of the meringue, sprinkle over it and put the lid on top. Dust the cream puffs with icing sugar.