One thing I’ve found to easily boost the flavour of bread is a dough scald.
Just before you mix the dry ingredients together:
Take something like 1/2 cup of the water used in the recipe. Boil it and roughly mix the boiling water with like 1 cup of flour taken from the recipe amount. You get a warm sticky dough ball, dump that in with the rest of the dry, add wet and knead.
Continue as normal.
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