For the crust mix the butter with the sugar until smooth, then add the egg continuing to mix then add the flour and salt powder.
Spread the dough in a tart pan and bake for 20 minutes then let it cool to room temperature.
In a saucepan, boil the milk and add the pudding powder mixed with 1 lb of sugar and a little milk. Leave on the fire, stirring constantly until it thickens, then let it reach room temperature.
Put the strawberries in a saucepan over low heat with the sugar, let it drop then add the gelatin prepared in advance according to the instructions on the envelope.
Pour the cream over the crust and add the strawberries.