A pain de mie a nice bread for breakfast and making sandwiches. It is backed in a tin - traditionally one that is closed at the top, which gives is the characteristic square shape. And I don’t have one of those, so mine always have a “bump”.
My tin is 22x12cm, which is about 9x4.5”, and to fill that, I need 500g of flour, so following the original version I replace replace 50g of the water with milk and add 10g butter.
500g flour 275g water 50g milk 10g butter 7/8g Salt one tbs yeast
This bread is one of my favourite all day, everyday bread because it is quick and easy to make, and the hint of butter makes it taste sweeter, especially when toasted. And the smell!
This is a starting point.