I'm slowly building up a set of shorter brew day, smaller batch recipes; so "no-boil" and "1 minute boil" approaches certainly help shorten the brew day. I'm also using the "newer" DME varieties (Munich, Vienna, Pale Ale) as well as Amber DME in these recipes. Some of these recipes are structured so they don't need a lot of attention, so I can brew one of these recipes at the same time I'm brewing a 'more complex' recipe (like a double mash).
I get an enjoyable beer with this: 1 lb DME, 1 gal water, 1 oz Citra hops. Add the DME at flame-on, heat to 180* F, add the hops, hold at 180* F for 20 minutes, turn off the heat, add irish moss, chill. (180* F is an easy temperature to hold with the induction cooktop that I have).