replace chocolate malt with Crystal 140 or Simpson Crystal Extra Dark. Simpsons Crystal Extra Dark imparts deep copper to rich amber hues to the finished beer and contributes strong crystal malt flavor notes of malty sweetness, caramel, and toffee.
A different take on a dark mild- a combination of mild, Munich & pale malts, subtly bittered with Magnum and EKG
"A classic northern dark mild like my Granddad used to drink." from Orfy on HBT forum
British Dark Mild