Preheat the oven to 200 degrees/gas mark 6. Grease a 12 hole muffin tin or line with muffin cases.

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Sift the flour, cocoa powder and salt together into a large bowl. Mix in the chocolate chips, sugar and marshmallows.

 

Place the eggs in a large jug or bowl and beat lighly, then beat in the milk and oil. Make a well in the dry ingredients and pour in the beaten liquid ingredients. Stir gently just to combine, do not over mix! Spoon the mixture into the muffin tin.

 

Bake in a preheated oven for 20 minutes until cooked and firm to touch. Allow to cool for 5 minutes and then place then on a wire tray to cool further.