AG Spiced Nugget Oatmeal stout advice

Any veteran stout makers out there that can throw some feedback my way?

The wife really wants cinnamon in there so was thinking 1/2 tbsp at 10 min?


Recipe: Nugget Oatmeal Stout
Style: 13C-Stout-Oatmeal Stout

Recipe Overview

Wort Volume Before Boil: 28.00 l
Wort Volume After Boil: 24.00 l
Volume Transferred: 23.00 l
Water Added: 0.00 l
Volume At Pitching: 23.00 l
Final Batch Volume: 22.00 l
Expected Pre-Boil Gravity: 1.045 SG
Expected OG: 1.052 SG
Expected FG: 1.014 SG
Expected ABV: 5.1 %
Expected ABW: 4.0 %
Expected IBU (using Tinseth): 31.1
Expected Color: 25.4 SRM
Apparent Attenuation: 73.0 %
Mash Efficiency: 65.0 %
Boil Duration: 60.0 mins
Fermentation Temperature: 18 degC

Fermentables
UK Pale Ale Malt 5000 g (79.4 %) In Mash/Steeped
US Flaked Oats 500 g (7.9 %) In Mash/Steeped
UK Chocolate Malt 200 g (3.2 %) In Mash/Steeped
UK Medium Crystal 200 g (3.2 %) In Mash/Steeped
US Roasted Barley 200 g (3.2 %) In Mash/Steeped
German Smoked Malt 200 g (3.2 %) In Mash/Steeped

Hops
US Nugget (13.0 % alpha) 7 g Bagged Whole Hops used First Wort Hopped
US Magnum (10.0 % alpha) 7 g Loose Pellet Hops used First Wort Hopped
US Nugget (13.0 % alpha) 10 g Bagged Whole Hops used 30 Min From End
US Nugget (13.0 % alpha) 14 g Bagged Whole Hops used 10 Min From End

Other Ingredients

Yeast: Wyeast 1318-London Ale III

Mash Schedule
Mash Type: Full Mash
Schedule Name:Single Step Infusion (68C/151F)
Step: Rest at 68 degC for 90 mins

Recipe Notes

You really need to mash the oats and smoked malt. Throw in a couple pounds of pale malt for enzymes and do a mini-mash.

If you want to taste the spice, I'd suggest adding it post fermentation (the CO2 produced will scrub out a lot of the cinnamon flavor). I've had good luck making a spice tea, filter it through a coffee filter and add to taste at bottling. I like adding subtle spice amounts to the boil, when brewing Belgians but “holiday” spices I do later on.

Otherwise looks good to me, hope it turns out well.

I was planning on mashing the oats and smoked malt with everything else... are you suggesting that I mash them seperatly?

I like your "tea" idea. does a half tbsp sound about right to you?

Sorry, my bad, I thought the UK Pale Malt was extract, the "Mashed/Steeped" threw me off. Should be fine as is.