Cinnamon Swirl Muffins

Makes 12

Ingredients
250g self-raising flour
1 tsp baking powder
110g caster sugar
1 egg, lightly beaten
225ml milk
85g butter, melted
For Cinnamon Sugar
2 tsp ground cinnamon
75g soft light brown sugar

Instructions
1. Preheat the oven to 190c. Line 12 muffin cups. For the cinnamon sugar, mix together the cinnamon sugar in a small bowl. Set aside.
2. For the muffins, mix the flour, baking powder, and sugar in a large bowl. In a separate bowl or jug, mix together the egg, milk and melted butter. Add the wet ingredients all at once to the dry ingerdients and mix briefly until just combined.
3. Put a tablespoon of batter into each prepared muffin cup. Sprinkle each muffin with a heaped teaspoon of cinnamon sugar, then spoon some more batter and cinnamon sugar into the muffin cups. Finish with a layer of batter, dividing it evenly. Use a skewer to swirl the mixture in each muffin cup. 
4. Bake in the oven for 18-20 minutes, or until risen and golden. Cool in the tin for 10 minutes, then turn out on to a wire rack. 

Taken from Muffins Galore