Step 1

Boil the sweetpotatoes in water for 10 mins or until tender, how long they take will depend on the size of the cubes. Drain very well and blend for a couple of minutes.

Step 2

Place all the ingredients in a stand mixer bowl apart from the butter.

Step 3

Use a dough hook to mix everything together.

Step 4

Use the lowest speed for two minutes and start gradually adding the softened butter, then increase to a medium speed for five minutes while gradually adding the remaining butter.

Step 5

The dough should now be very soft, scrape down the sides of the bowl to remove any excess, then move the dough to a larger bowl, cover with a tea towel and chill for at least 4 hours.

Step 6

Divide the dough into 3 equal parts, then roll them.

Step 7

Place the brioche into 3 baking trays.

Step 8

Cover with plastic wrap and let rise again for 30-45 minutes.

Step 9

Preheat oven to 180°C.

Step 10

Remove plastic wrap and towel and bake the brioches for 20-25 minutes or until just slightly golden brown on the edges.