"The version of bread pudding I learned from my English working-class grandmother involves stale bread cut into half-inch cubes layered in a buttered baking dish and covered with custard (egg, sugar and cream beaten together, flavoured with cinnamon and/or nutmeg). Set the dish in a pan of water and bake at 350F until a knife comes out clean. For the gala version, line the bottom of the buttered dish with jam."

Charmion - see my post of 27 Jan 25 - 11:45 AM. What you just described is Bread and Butter Pudding, except that the bread is usually cut in slices and buttered, then cut in half diagonally before layering in the dish/tin and covered with the custard.

Bread Pudding is a heavy, spicy cake, no custard, best sliced and eaten with a nice afternoon cup o'tea.

Those two dishes are frequently conflated...

Bread and Butter Pudding

Bread Pudding