How to make lemon muffins with crumble step by step

Step 1 - preparations

• Preheat the oven to 180℃.
• Prepare a muffin tin, or cupcake liners - I put the batter into tall "tulip" type cupcake liners and got 15 pieces.

Step 2 - preparing the muffin batter

• Transfer the wet ingredients for the batter to a larger bowl and add sugar.
  250 g mascarpone cheese, 150 g Greek yogurt, 2 eggs, approx. 50 ml lemon juice, 150 g sugar
  
• Mix everything together with a spoon or a kitchen whisk.
  
• Add flour and baking powder.
  200 g all-purpose flour, 1 teaspoon baking powder
  
• Mix.
  
• Fill the cupcake liners with batter - to about 2/3 of their height.
  
• If using fruit, place it on top of the muffins.
  small fruits
  

Step 3 - preparing the crumble topping

• Pour flour and sugar into a bowl, add melted butter.
  100 g all-purpose flour, 60 g sugar, 50 g butter
  
• Mix the ingredients with a fork to obtain a crumbly mixture.
  
• Sprinkle the crumble topping over the muffins.
  

Step 4 - baking the muffins

• Place the muffin tin into the hot oven and bake for about 20-30 minutes - until a dry stick comes out.
• After baking, let the muffins cool slightly.
• You can additionally sprinkle them with powdered sugar or drizzle with icing.