Gateau Breton ~ Nigella Lawson Style …
225g plain flour
170g caster sugar
250g unsalted butter, diced
6 large egg yolks
Zest from one large lemon
for the glaze
1 teaspoon egg yolk [from the 6]
1 tablespoon water
Preheat oven to 190C and beat glaze ingredients in teacup then set aside.
Put all ingredients into bowl of Kitchen Aid fitted with a dough hook and slowly beat until everything is combined and golden.
The dough will be very dense and sticky.
Get it into your well-greased pan by any means necessary – it may be tricky.
Smooth down the top then brush over glaze. Use a fork to prick all over.
Bake for 15 minutes, then reduce temperature to 180C and bake for another 18 minutes or until firm to the touch.
Allow to cool completely before removing from pan.
Slice into wedges to serve