Party Slab Brownies
The half-sheet format creates many evenly sized portions and more edge area; the recipe is formulated for a shallow slab rather than simply doubling an 8×8 batch. The recipe is built for a Chewy-fudgy result in a 13×18-inch half-sheet pan.
Ingredients
- 340 g butter
- 340 g dark chocolate
- 500 g sugar
- 6 eggs
- 220 g flour
- 70 g cocoa
- 250 g chips
Method
- Heat oven to 175°C/350°F and prepare the specified small-format pan with parchment or grease as appropriate.
- Make the batter by combining the melted fat and chocolate or cocoa base with sugar and eggs, then fold in flour and cocoa.
- Divide or spread the batter evenly. In muffin or mini-muffin pans, equal fill levels matter because small portions overbake quickly.
- Start checking earlier than you would for a single deep slab. Remove when the edges are set and the centres match the intended texture.
- Cool in the pan only until the pieces are strong enough to move, then follow the recipe format for serving or cutting.
Why this formulation works
The half-sheet format creates many evenly sized portions and more edge area; the recipe is formulated for a shallow slab rather than simply doubling an 8×8 batch.
Pan, doneness and texture
The listed pan is part of the formulation. Moving the same batter into a pan with a different base area changes average batter depth and therefore changes the relationship between edge and centre cooking. Use the pan converter before substituting a substantially different size.
For fudgy and chewy styles, a completely clean skewer can indicate that the centre has baked beyond its intended texture. Look for set edges and a centre that is no longer liquid, then allow the slab to cool before making a final texture judgement.
Recipe notes
- Use weight measurements for the most repeatable result.
- Pan size and material affect batter depth and edge behaviour; use the pan converter before substituting a substantially different pan.
Useful next steps
Adapt this recipe for another pan or batch size, scale this recipe, plan equal portions, or compare fudgy, chewy and cakey brownie structure.