How to make marbled Red Velvet cookies step by step

Step 1 - Preliminary dough preparation

• Place the butter in a mixing bowl, then add the sugar and vanilla, if using
  125 g butter, 175 g sugar, 1 teaspoon vanilla
  
• Mix together on high speed for several minutes.
• Add the egg and mix briefly - until combined.
  1 egg
  
• Set aside an equal half of the dough into a second bowl - for me it was 178 g.
  

Step 2 - Preparation of white dough for marbled cookies

• To one portion of the dough set aside, add flour and baking powder - mix briefly - until combined.
  150 g all-purpose flour, 1 teaspoon baking powder
  
• If the dough does not want to combine into a uniform mass, knead it briefly with your hands.
  

Step 3 - Preparation of red dough for cookies

• To the second portion of dough, add red food coloring.
  approx. 0.5 teaspoon red food coloring
  
• Add flour, baking powder, and cocoa and briefly mix the dough into a uniform mass.
  130 g all-purpose flour, 1 teaspoon baking powder, 1 tablespoon cocoa
  

Step 4 - preparing red velvet cookies

• Scoop equal portions of both doughs with a teaspoon - for me these were "heaping" portions - about 27 g each.
  
• Divide the dough into three smaller portions to get a total of 6 pieces - 3 white and 3 red.
• Alternate sticking the pieces of dough together to create a zebra pattern.
  
• Finally, carefully roll the dough in your hands into a marbled ball.
  
• You should get 12 large balls.

Step 5 - chilling the cookies

• Put the cookies in the fridge - or place them on the balcony for about 30 minutes.
• Meanwhile, coarsely chop the white chocolate.
  approx 65-100 g white chocolate
• Preheat the oven to 180 ℃ (top/bottom heat) or 170 ℃ (fan-assisted).

Step 6 - baking cookies

• Arrange the chilled cookies on a large baking sheet lined with parchment paper - leave ample space between them.
• Gently flatten each cookie with your hand.
  
• Sprinkle the top of the cookies with white chocolate and gently press it down.
  
• Place the baking sheet in the preheated oven and bake the cookies for 10-12 minutes.
• Immediately after baking, the cookies will still be very soft, so wait about 10 minutes before removing them from the baking sheet.