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homemade boston bun

Australian Boston Bun

  • Author: Sylvie Taylor
  • Prep Time: 20 minutes
  • Cook Time: 55 minutes
  • Total Time: 1 hour 15 minutes
  • Yield: Serves 10 1x
  • Category: Breads
  • Cuisine: Australian, New Zealand


Part bread part cake with that essential icing, this Boston Bun or Sally Lunn Bun is a perfect accompaniment alongside your favorite hot beverage.



Boston Bun
320 grams / 2 cups plain flour
8 grams / 2 teaspoons baking powder
3 grams / 1/2 teaspoon baking soda
1/4 teaspoon sea or kosher salt
210 grams / 1 cup mashed potato
150 grams / 3/4 cup superfine/caster sugar
155 grams / 2/3 cup milk
80 grams / 1/2 cup sultanas or raisins
30 grams / 2 tablespoons butter, room temperature
170 grams / 1 1/2 cups confectioner’s/icing sugar
1 1/2 tablespoons milk
22 grams / 1/4 cup desiccated coconut


  • Greaseproof a round baking tin and preheat the oven to 180C/350F.
  • Sift the flour, baking powder, baking soda and salt into a bowl and stir together, making a well in the center. Set aside.
  • Press the mashed potato through a sift to get it nice and fine into a separate bowl and combine with the sugar until well combined and smooth.
  • Add in the milk and and sultanas or raisins and stir until the milk is fully incorporated.
  • Pour the wet ingredients into the dry ingredients and fold until combined and the mixture is slightly shaggy.
  • With floured hands lift the dough out of the bowl and shape into a round loaf.
  • Place into your tin and bake until golden all over, approximately 50 minutes.
  • Remove and allow to cool on a cooling rack.
  • While the bread is still warm, prepare the icing by placing the butter, confectioner’s sugar and milk into a bowl and beat with a whisk until smooth and combined,
  • Smear over the top of your loaf and sprinkle over the desiccated coconut evenly.
  • Allow to cool fully.
  • Slice and serve with a cup of your favorite hot beverage on the side.


Recipe by Roamingtaste


  • Calories: 309 calories per serve