The "strong" is self-explanatory. The "porter" appellation comes from the fact that this beer will be very dark. For the "American" adjective there are two reasons. Firstly, I used all American ingredients. Obviously you can make a similar beer with UK ingredients ... no big deal. The second reason is that in the style of some American and Canadian porters of the past, there will not be a strong roasty element, of the kind you'd expect from black malt or chocolate malt. Instead, the colour comes only slightly from a very dark grain (550L roasted wheat, no husk, therefore less roasty taste) and but mostly from 120L crystal malt. There is also a dark sugar (Panela) which both lightens up the body and darkens the colour. A touch of molasses: because it's a very American ingredient, and I was feeling a bit <ahem> Peculier.

Mashed 90 minutes at 150°F. (In soft water, in which I dissolved 0.3 oz gypsum and 0.3 oz Epsom salts, i.e. 8.5 grams each.) Two hour sparge, 7 US gallons collected. Boil: 60 minutes. Primary ferment with US-05 at 65°F. (Were you expecting °C? It's an American porter, after all.

OG 1.072

Here we go:
9 lbs Rahr 2-row malt
2 lbs Briess 10L Munich malt
1 lb Briess 120L crystal malt
1 lb Briess flaked corn (i.e. maize)
4 oz Briess Midnight Wheat (550L)
1 lb Panela sugar (block broken up, and dissolved overnight in water, added to the boiler with the molasses and first quota of hop pellets, at the start of the sparge)
2 oz unsulphered molasses (dissolved with the Panela)
Hop pellets, estimating 39 BU. Liberty hops were 4.6%AA, Citra was 14%AA.
1 oz Liberty added to the boiler at the start of the sparge
0.5 oz Liberty (30 minutes)
1 oz Citra (15 minutes)
0.5 oz Liberty (15 minutes)