Kouign amann

Method

1. Put the flour in a mixing bowl, then stir through the yeast and salt. Mix the water with 60g of the milk in a jug, then pour into the flour, stirring with a palette knife until you get a shaggy, but not wet, dough. You might need the extra 20g milk. Tip out the dough onto a lightly floured surface and knead for 10 minutes or until smooth and elastic. Clean the bowl and lightly grease with a little of the softened butter, then return the dough to it. Cover with cling film or a plastic bag, then leave somewhere warm to rise for around 2 hours or overnight in the fridge.
2. Once the dough is puffy and has doubled in size, put the 300g butter between 2 sheets of baking paper and bash with a rolling pin to form a rectangle roughly 25cm x 35cm – it’s easiest to bash it out to a roughly correct shape, then fold the baking paper around it in a rectangle that’s the right size, before rolling the butter to fit perfectly into the rectangle. Tip the dough onto the lightly floured surface again, knead it briefly again to knock out large air bubbles, then roll out to form a rectangle roughly 30cm x 45cm. It will spring back as you roll; just be patient and try to roll rather than stretch the dough.
3. Start with one of the short ends of the pastry rectangle facing you. Place the 300g butter in the bottom two thirds of the dough – there should be a small pastry border at the sides. Fold the top third of the dough over the middle third, dust the flour off the exposed side, then fold the bottom, butter-covered third over that, as if you’re folding a letter.
4. Turn the dough a quarter-turn to the right, so one open edge is facing you and the other is at the top. Roll out the dough until it has doubled in length, then repeat the rolling-and-folding process – the top third comes down and the bottom third goes up. Neaten the edges to keep them straight using a palette knife or ruler (it doesn’t have to be perfect), then wrap tightly in cling film and chill for 40-60 minutes. Mark how many folds you’ve done on the cling film (it’s 2 at this point).
5. Once the dough is chilled and firm, repeat the rolling-and-folding twice more as above. After the fourth roll, sprinkle 100g of the sugar over the dough, trying to leave a 1-2cm border. Fold the pastry like a letter again, then wrap tightly in a new piece of cling film and chill to firm up again. Repeat the roll-and-fold twice more (6 times in total), still keeping the edges neat with a palette knife, then wrap in a new piece of cling film and chill again.
6. Once the dough is firm, roll it out into a square, roughly 40cm x 40cm.  Use a large, heavy-bladed knife to trim the edges into neat lines, then cut into 16 x 9-10cm squares. Cut the dough by pressing the blade straight down [I], rather than sawing at it – you want to keep the layers intact. You should be able to clearly see the layers of butter in the dough.
7. Generously grease the muffin tins with the remaining softened butter (use it all). Brush any excess flour from the tops of the dough squares with a pastry brush, then sprinkle half the remaining sugar over them, patting gently to make it stick. Flip them over, brush and repeat, reserving 2 tbsp sugar. Fold the 4 corners of each dough square into the middle, then push the pastry shapes into the muffin tins so the folded corners are at the top. Cover with a plastic bag or a loose piece of cling film and leave to prove somewhere cool for 45-60 minutes.
8. Heat the oven to 200°C/180°C fan/gas 6. Once the kouign amanns have puffed up, sprinkle with the remaining sugar, then bake for 15 minutes. Turn the oven down to 180°C/160°C fan/gas 4 and bake for 10-15 minutes more until the pastries are golden and crisp. Lift them straight out of the tins onto a wire rack, then allow to cool to just warm or room temperature. Enjoy with a coffee or a Breton cider.