Cookies Slices with Filling

Ingredients

• 3 pcs Egg
• 120 g Granulated sugar
• 100 ml Oil
• 100 ml Milk
• 180 g All-Purpose Flour
• 1 packet Baking powder
• Lemon Juice
  to taste
• 1/2 tbsp Lemon Zest
  from half a lemon
• 4 pcs Egg
• 8 tbsp Granulated sugar
• 1 packet Vanilla Sugar
• 100 g Cooking Chocolate
• 200 g Butter
• 4 tbsp Jam
• 4 tbsp Rum
• 300 g Butter biscuits
• Whipped cream
  as needed
• Cream Stabilizer
  as needed
• Milk
  as needed