I'll post my recipe that I brewed on Friday---an Oatmeal Stout, based on Charlie Papazian's Uckleduckfay, but amended to suit my own tastes. This'll be a bit bigger than Guinness (as it should be), but you'll be amply rewarded come January. I know you said you'd like to stick with extract for now, but if you're up for it, partial-mash isn't that much more of a leap, and the benefits are awesome. Otherwise, you can just steep the grains and use a little more DME.
CGNU Oatmeal Stout
A ProMash Recipe Report
BJCP Style and Style Guidelines
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13-C Stout, Oatmeal Stout
Min OG: 1.048 Max OG: 1.065
Min IBU: 25 Max IBU: 48
Min Clr: 22 Max Clr: 60 Color in SRM, Lovibond
Recipe Specifics
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Batch Size (Gal): 5.00 Wort Size (Gal): 5.00
Total Grain (Lbs): 10.25
Anticipated OG: 1.062 Plato: 15.18
Anticipated SRM: 48.2
Anticipated IBU: 39.1
Brewhouse Efficiency: 75 %
Wort Boil Time: 60 Minutes
Pre-Boil Amounts
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Evaporation Rate: 15.00 Percent Per Hour
Pre-Boil Wort Size: 5.88 Gal
Pre-Boil Gravity: 1.053 SG 13.00 Plato
Formulas Used
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Brewhouse Efficiency and Predicted Gravity based on Method #1, Potential Used.
Final Gravity Calculation Based on Points.
Hard Value of Sucrose applied. Value for recipe: 46.2100 ppppg
% Yield Type used in Gravity Prediction: Fine Grind Dry Basis.
Color Formula Used: Morey
Hop IBU Formula Used: Rager
Additional Utilization Used For Plug Hops: 2 %
Additional Utilization Used For Pellet Hops: 10 %
Grain/Extract/Sugar
% Amount Name Origin Potential SRM
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29.3 3.00 lbs. Generic LME - Dark Generic 1.035 25
14.6 1.50 lbs. Flaked Oats America 1.033 2
24.4 2.50 lbs. Pale Malt(2-row) America 1.036 2
9.8 1.00 lbs. Generic DME - Light Generic 1.046 8
2.4 0.25 lbs. Chocolate Malt America 1.029 350
4.9 0.50 lbs. Chocolate Malt Great Britain 1.034 475
9.8 1.00 lbs. Crystal 90L America 1.033 90
4.9 0.50 lbs. Roasted Barley Great Britain 1.029 575
Potential represented as SG per pound per gallon.
Hops
Amount Name Form Alpha IBU Boil Time
-----------------------------------------------------------------------------
0.50 oz. Crystal Pellet 4.50 0.0 0 min.
0.75 oz. Cascade Pellet 5.75 20.0 60 min.
1.00 oz. Willamette Pellet 4.10 19.1 60 min.
Yeast
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Water Profile
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Profile:
Profile known for:
Calcium(Ca): 0.0 ppm
Magnesium(Mg): 0.0 ppm
Sodium(Na): 0.0 ppm
Sulfate(SO4): 0.0 ppm
Chloride(Cl): 0.0 ppm
biCarbonate(HCO3): 0.0 ppm
pH: 0.00
Mash Schedule
-------------
Mash Type: Single Step
Grain Lbs: 6.25
Water Qts: 0.00 - Before Additional Infusions
Water Gal: 0.00 - Before Additional Infusions
Qts Water Per Lbs Grain: 0.00 - Before Additional Infusions
Saccharification Rest Temp : 0 Time: 0
Mash-out Rest Temp : 0 Time: 0
Sparge Temp : 0 Time: 0
Total Mash Volume Gal: 0.00 - Dough-In Infusion Only
All temperature measurements are degrees Fahrenheit.
Notes
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Dry-Hop w/ Crystal pellets in secondary
