How to make rhubarb cake with meringue step by step

Step 1 - preparing the dough

• Wash the eggs for the dough and separate the whites from the yolks - place the whites in a separate bowl, and add the yolks to the remaining dough ingredients.
  375 g wheat flour - all-purpose, 2 teaspoons baking powder, 35 g sugar, 250 g butter, 5 egg yolks
  
• Thoroughly knead the ingredients for the shortcrust pastry.
  
• Separate about 1/3 of the dough and wrap it in foil - put it in the refrigerator to chill.
  
• Press the remaining dough evenly into the bottom of the prepared baking pan (lined with baking paper).
  
• Place the pan with the dough in the refrigerator to chill for about an hour.
• Pre-bake the chilled dough in the pan for 20 minutes in an oven preheated to 190 degrees Celsius - top/bottom heat mode.

Step 2 - preparing the rhubarb

• While the dough is pre-baking, wash the rhubarb, trim the ends, and cut it into pieces about 1.5-2 cm long.
  approx. 500-600 g rhubarb
• Transfer the rhubarb to a bowl, add sugar and jam (if using), and mix together.
  2 tablespoons raspberry jam, approx. 50 g sugar
  

Step 3 - preparing the pudding meringue

• Start gently whisking the egg whites and gradually add sugar to them while continuously mixing.
  5 egg whites
  
• Whisk on high speed until all the sugar is added and the egg whites become very thick and white.
  200 g powdered sugar
• Then add part of the pudding mix in portions.
  2 packages vanilla pudding
  
• Add the oil and briefly mix on low speed.
  120 ml oil
  
• Pour in the rest of the pudding mix and briefly mix.

Step 4 - finishing the cake

• Remove the pan with the pre-baked crust from the oven.
• Spread the rhubarb over the dough and distribute it evenly over the bottom.
  
• Spread the pudding meringue over the rhubarb and level it.
  
• Remove the smaller portion of dough from the refrigerator and grate it over the meringue.
  

Step 5 - baking the cake

• Place the cake in the oven and bake for another 40 minutes.
• Cool the finished cake, and before serving, you can additionally sprinkle it with powdered sugar.