a few variations for you to consider and pick out what you like and create your own recipe.
NOTE: these are really basic recipes. I could give you a complicated K&K/K&B recipe forumulation but im keeping it simple and letting you work it out as I have nmo uidea about your brewing experiance. These arent the absolute best porter kit recipes you can make but ther are pretty good.
edit: A quick search for chocolate mahogany gives you these
results. plenty of info there
Chocolate Porter
1 x tin Cascade Porter
1kg Dark DME
250gms cracked chocolate grain
15gms Fuggles
10gms Amarillo
US56 yeast
Add Tin to fermenter.
Steep grain in hot tap water for 25 mins in an insulated container.
Strain grain liquor into pot filled with 3L of hot water and add DME
Boil for 10 mins
Add boiled malt and liquor fermenter.
Throw all the hops in.
Top up to 20L
Hydrate and pitch yeast.
OG - 1060
FG - 1018
Choc Mahog Porter (Belgrave Brewers my alterations)
Cascade Chocolate Mahogany Porter - 1.7kg (1.25 Liters)
Amber Liquid Malt Extract - 1.7kg
Chocolate Malt - 125g
250g choc grain steeped
25g Fuggles Hop @30min
20L
Safale Yeast (S04) - 11g
OG 1049 FG 1010
Choc Stout Mahogony
1 x coopers Stout tin,
1 x Cascade Choc Mahag Porter,
500g DDME,
0.25kg Choc Malt Grain (steeped in 1Lt water for 15min - bought up to boil from cold then steep),
22L,
pitched 0.6L of yeastcake (Wyeast 1098) from Kenzie EQPA
OG 1.060, FG 1.022, 5.6% (6.1% after bottling)
Brewers porter
ingredients from Country Brewer-
porter (1.7kg)
Stout (1.7kg)
Ultrabrew 1kg
Choc grain (150g steeped for 20 min)
Dark grain (100g steeped for 20 min)
Kent Goldings (30g boiled for 10 min)
Licorice extract
Standard dried yeast
8.2%abv
Cascade Chocolate Mahogany Honey Porter
Cascade Choc Mohogany Porter can,
1kg Morgans Liquid Choc Malt
500g Capillano Yellow Box honey (boil for 10min with half malt and 2L water)
20g Cascade @ 5 minutes
If Carlton Black Was a Porter Clone
Porter kit
500g LDME
500g Dex
100-200g roasted barley steeped
100-200g choc malt grain steeped
12g Pride of Ringwood Hops @ 30min.
Porter
Morgans Iron Bark Dark Ale
Morgans Choc Malt can
7-10ml vanilla extract
Kit yeast
18C
22L