Quick Vanilla Mousse Cake

Prepare a 22 cm springform pan and, if desired, line the bottom with baking paper.

Melt the butter in a small saucepan or in the microwave and let it cool briefly.

Finely crush the butter cookies and thoroughly combine them with the melted butter.

Fill the cookie mixture into the springform pan, spread it evenly and press firmly with a spoon or the bottom of a glass.

Chill the cookie base in the refrigerator until firm.

Meanwhile, prepare the vanilla mousse powder according to the package instructions using 250 ml whole milk (3.5% fat).

Pour the vanilla mousse over the chilled cookie base and smooth the surface.

Let the cake chill and set in the refrigerator until serving.