Mix the sugar and yeast into the water and leave for five minutes until frothy
Mix the flour and salt together as salt will kill the yeast if it touches it directly
Stir in most of the flour and all the butter into the yeast mixture
Use your hand to knead it in the bowl for five minutes until it is smooth and not sticky. You may not need all the flour or you may need to add in a bit more as moisture content of flour varies. It should not stick to your hand but not be dry and flaky either
Cover the bowl with clingfilm and leave in a warm place for 20 minutes to rise
Preheat oven to 200C/425F/Gas 7
When it has risen gently tip it out onto a lightly floured surface
Knock the air out of it by gently flattening it out.
Shape into a loaf and place on a floured baking tray. Sprinkle with flour and cut slashes into top
Leave to rise for 15 minutes
Bake for 15 minutes or until lightly browned and sounds hallow when tapped on bottom
Cool on wire rack