I have a Gingerbread brown ale I make for the holidays. It's quite popular, and can be ready in a reasonable timeframe (4-6 weeks). It's got a great malt character, bready with a bit of rich caramel, but is still fairly light and drinkable. And the spice is perfect for some holiday cheer.
The malt bill is more complicated than I would think wise nowadays, but has worked so well I'm reluctant to change it.
For 5 gallons:
6# Golden Promise
2# Mild Malt
1/2# Victory
1/2# Brown malt
1/4# Pale chocolate malt
1/4# crystal 60
1/3# crystal 40
Mash high-ish. Bitter to 10-15 IBU's. Add spices at flameout:
1 tsp cinnamon; 1/2 tsp ginger; 1/4 tsp allspice; 1/4 tsp cloves.
Ferment in the low 60's with WLP002 (or Wyeast 1968, same thing).
I usually take twice again those spices, cover them with a few ounces of vodka, keep it in a jar. By the time it's ready to bottle/keg, you can use that to up the spice flavor if desired.
Could probably make an extract version, if necessary, by replacing the base malts with malt extract and maybe adding a brush of melanoidin malt to compensate for the mild malt. But I really like the purity and mild sweetness of the Golden Promise, so this wouldn't be ideal naturally.