How to make New York cinnamon crumb cake step by step

Step 1 - preparations

• Take out the products - butter, eggs, yogurt, and milk - from the refrigerator at least two hours in advance.
• Line the baking pan with parchment paper, or grease it with butter and sprinkle with breadcrumbs or flour.
• Preheat the oven to 170℃ (fan-assisted) or 180℃ (top/bottom heat mode).
• Mix the flour with baking powder together (for the cake batter).
  180 g wheat flour - all-purpose, 1.5 teaspoons baking powder

Step 2 - preparing the creamed cake batter

• Transfer the softened butter to a bowl, add sugar, oil, and flavoring, and start mixing on high speed.
  60 g butter, 2 tablespoons oil, 100 g powdered sugar, vanilla extract
  
• Mix until the mixture becomes fluffy and light in color - for me, it usually takes three minutes.
  
• Reduce the mixer speed to the lowest, add the egg, egg white, and about a tablespoon of flour mixed with baking powder - mix briefly just until combined.
  1 egg, 1 egg white
  
• Add yogurt and mix briefly.
  80 g Greek yogurt
  
• Add part of the remaining flour and mix briefly.
  
• Add milk and the rest of the flour - stop mixing when there are still traces of flour visible on the sides.
  60 ml milk
  
• Then, just stir the batter with a spoon.
  
• Transfer the batter to the prepared pan.
  

Step 2 - preparing the cinnamon crumble

• In a bowl, mix the dry ingredients for the crumble topping.
  200 g wheat flour - all-purpose, 130 g sugar, 1 tablespoon cinnamon
  
• Add the melted butter and mix with a fork until a crumbly mixture forms.
  140 g butter
  
• Spread the crumble on top of the cake.
  

Step 3 - baking the cake

• Place the cake pan in the preheated oven and bake for about 35 minutes - until a dry stick comes out clean.
• After baking, cool the cake.