How to make blackcurrant cake step by step

Step 1 - preparations

• Line the baking pan with parchment paper or grease it with butter and sprinkle with flour or breadcrumbs.
• Preheat the oven to 170 ℃ (fan-assisted) or 180 ℃ (top/bottom heat mode).

Step 2 - preparing the buttermilk batter

• Transfer the eggs and sugar to a bowl - you can also add a little vanilla extract if you like.
  4 eggs, 200 g sugar, vanilla extract
  
• Beat the eggs and sugar together into a thick and fluffy mixture - I beat for several minutes on the highest speed of the mixer.
  
• Mix the wheat flour with baking powder.
  450 g all-purpose flour, 2.5 teaspoons baking powder
• Add the flour in portions to the beaten eggs, mixing only on low speed of the mixer.
  
• Add the flour alternately with buttermilk.
  300 ml buttermilk
  
• Add oil and mix briefly - just until combined.
  200 ml oil
  

Step 3 - placing the dough into the pan

• Do formy przełóż mniej więcej połowę ciasta i rozprowadź równą warstwą.
  
• Spread the blackcurrant jam on the dough and gently spread it.
  approx 300 g blackcurrant jam
  
• Spread the rest of the dough and gently spread it.
  

Step 4 - preparing the streusel for the cake

• Transfer the streusel ingredients to a food processor or a large bowl and briefly mix or crumble together until crumbly.
  100 g butter, 150 g all-purpose wheat flour, 70 g sugar, 0.5 teaspoon cinnamon
  
• Sprinkle the streusel over the top of the cake.
  

Step 5 - baking the blackcurrant cake

• Place the pan with the cake into the preheated oven and bake for about 40-50 minutes - until a skewer inserted comes out clean.
• You can serve the cake after it has slightly cooled.