Apple cinnamon muffins with a streusel topping and marzipan filling

I don't know if it is the Christmas feeling or maybe the long cold days but lately I fancy everything with cinnamon!! So here is another version of apple cinnamon muffins but this time with a streusel topping! YUM!!!

Ingredients:

For the muffins:

• 60g butter, melted
• 1 grated apple
• 250g flour 
• 1 egg, light beaten 
• 2 teaspoons of baking powder 
• 2 teaspoons of cinnamon 
• 1 spoon lemon juice
• 120 g soft light brown sugar 
• 150ml buttermilk
• 100g marzipan

For the streusel:

• 70g flour
• 50g light brown sugar
• 50g soft butter
• 1teaspoon cinnamon - optional

Preheat the oven to 200°C. Line a 12-cup standard muffin tin with paper liners. In a mixing bowl combine flour, baking powder, brown sugar, cinnamon and grated apple. Add buttermilk, egg and melted butter. Mix until just combined, but doesn't have to be too precise. With a spoon scoop evenly into the prepared cupcake liners. Cut the marzipan in small squares and place each piece in each of the muffins, then cover with a bit of your apple mixture. Remember to fill the muffin cases only 3/4 cavity otherwise they might overflow. 

For the streusel: mis all the ingredients in a mixing bowl and with your finger taps combine everything until you get small crumbles. Sprinkles the streusel over your muffins. Bake your muffins approx. 25 minutes.