Oatmeal Stout Brownies
Unsweetened cocoa powder, oatmeal stout and dark bittersweet chocolate come together in this vegetarian — 65 minutes, 7 steps, and the kind of result worth repeating. You'll find the full ingredient list (with a scaler to change the servings), 7 steps of method, substitutions, and ideas for what to serve alongside.
You'll mainly reach for oven and saucepan. At medium difficulty across 7 steps, it's manageable with a little attention. As written, it's meat-free.
What you'll need
Shopping list (4)
Pantry staples (you likely have these)
Diet: vegetarian — no meat or fish, based on every ingredient listed below.
Contains: Gluten Dairy Egg
Allergen labels are informational and may not cover cross-contact; verify every package and consult a qualified professional for medical dietary needs. Diet labels are derived from the ingredient list on this page — how we verify diet and allergen labels.
Food-safety and allergen information is general, not medical advice. Follow current guidance from your local food-safety authority, verify product labels, and seek qualified advice for allergies or health conditions.
How to make it
- Pour the oatmeal stout into a small saucepan and simmer over medium heat until reduced to about 1/4 cup of concentrated liquid, then set aside to cool.
- Preheat the oven to 175 C (350 F) and line an 8-inch square baking pan with parchment paper, leaving an overhang on two sides.
- Melt the butter and bittersweet chocolate together in a heatproof bowl set over a pan of barely simmering water, stirring until smooth, then remove and let cool slightly.
- In a large bowl whisk the eggs, sugar and vanilla for about 2 minutes until pale and thickened, then whisk in the cooled chocolate mixture and the reduced stout.
- Sift the flour, cocoa powder and salt over the wet mixture and fold gently with a spatula until just combined, then fold in the white chocolate chips.
- Scrape the batter into the prepared pan, smoothing the top, and bake for 28 to 32 minutes until the edges are set but a skewer inserted in the centre comes out with a few moist crumbs.
- Cool the brownies completely in the pan, then lift them out using the parchment and cut into squares for clean edges.
You'll use: Oven · Saucepan · Pan · Whisk
Ingredient substitutions
- Butter
- olive oil (¾ the amount) · coconut oil · margarine
- Eggs
- ¼ cup unsweetened applesauce (baking) · 1 tbsp ground flax + 3 tbsp water per egg
Tips & common questions
How long does Oatmeal Stout Brownies take to make?
About 65 minutes from start to finish — an estimate based on the 7 steps and 10 ingredients. Times vary with your kitchen and how much prep you do ahead.
What can I use instead of butter?
Try olive oil (¾ the amount). See the substitutions section above for more swaps.
Can I scale this recipe up or down?
Yes — use the servings control above the ingredients and every quantity rescales automatically (fractions included). Cooking times stay roughly the same; very large batches may need a little longer.
Is Oatmeal Stout Brownies vegetarian?
Its ingredients contain no meat, fish or shellfish, so it is suitable for vegetarians. Check any cheese for animal rennet if that matters to you.
Related recipes
Adapted recipe — rewritten in our own wording from an open-licensed community cookbook, not yet independently kitchen-tested by Consomee. How we source, test & correct recipes.
Oatmeal Stout Brownies is adapted by Consomee from the Wikibooks Cookbook, rewritten in our own wording and used under CC BY-SA 4.0. Photo: Oatmealstoutbrownies.jpg (Public domain) via Wikimedia Commons. We add the serving scaler, ingredient tools, timing and structure — how we source recipes.