Prepare the base:Mix 150 g plain flour, 100 g sugar, 1 tsp baking powder, and 1 tsp vanilla sugar in a bowl. Add 100 g butter and 2 pcs eggs, and mix into a smooth dough.
Line the baking tin with baking paper, and spread the dough evenly over the bottom.
Preheat the airfryer to 180°C. Bake the base for about 10-12 minutes, until it is lightly golden and a skewer inserted in the centre comes out clean. Give it a few more minutes if there is still dough on the skewer.Let it cool.Start the online kitchen timer here
Spread a layer of 200 g strawberry jam over the cooled base.
Meringue:Whisk 3 pcs egg whites until stiff.Gradually add 150 g sugar and 1 tsp lemon juice, until the meringue is glossy and firm.
Spread the meringue over the jam.Use the back of a spoon to make small peaks and dips in the meringue.
Put the cake back in the airfryer, and bake at 150°C for about 8-10 minutes, or until the meringue is golden.Start the online kitchen timer here
Let the cake cool in the tin before serving.
Notes
-Adjust the amount of jam to taste and desired sweetness.-Keep an eye on the meringue while baking, as airfryers can vary in efficiency.