Most products in gluten-free pastry demand a compromise. A brownie is the exception to that rule, because gluten is an unwanted component in it anyway.
Why is gluten unwanted in a brownie?
A brownie sits between a cake and chocolate.
The texture wanted is dense, moist and slightly sticky.
Gluten gives a batter structure and air.
As gluten develops the product rises and moves toward the texture of a cake.
Classic brownie recipes therefore keep the flour low and the batter barely mixed.
Even making a brownie with wheat flour, the aim is to minimise the gluten.
Using gluten-free flour achieves that aim by itself and the recipe simplifies.
| Component | Quantity | Function |
|---|---|---|
| White chocolate | 250 g | Taste and fat |
| Butter | 120 g | Moisture and texture |
| Eggs | 3 | Structure |
| Sugar | 80-100 g | Sweetness |
| Rice flour | 90 g | The base |
| Almond flour | 40 g | Moisture and aroma |
Which gluten-free flour gets used?
A blend gets used rather than a single flour.
Rice flour serves as the base; neutral in taste and fine in texture.
Almond flour holds moisture and protects the product from drying.
Cornflour provides lightness.
Ready gluten-free blends work too.
Xanthan gum becomes unnecessary; because a brownie is a product wanting no structure, no binder is needed, and that makes a gluten-free brownie easier than other gluten-free products.
What does white chocolate change?
White chocolate contains no cocoa solids.
Cocoa butter, milk powder and sugar make it up.
That leads to two results.
The first is colour; the product comes out pale yellow rather than dark like a classic brownie.
The second is sugar; 45 to 50 percent of white chocolate is sugar.
The sugar added separately therefore falls; where a classic recipe carries a hundred and fifty grams, eighty to a hundred suffices in the white chocolate version.
How does the dense texture come about?
Three factors decide.
The first is fat; white chocolate and butter together create a high proportion of it.
The second is the eggs; over-beaten eggs add air and the product rises.
The eggs get beaten lightly.
The third is mixing; the batter gets stirred as little as possible once the flour goes in.
Even without the risk of gluten developing in gluten-free flour, over-mixing adds air and the density disappears.
How does the baking time get set?
That is the most critical step in a brownie.
Twenty-five to thirty minutes at a hundred and seventy degrees.
The centre does not bake through; it stays slightly wet.
The skewer test does not apply here; a skewer coming out clean means an over-baked brownie.
A few moist crumbs should remain on it.
The brownie cools in the tin out of the oven; residual heat bakes the centre a few minutes further and it reaches the right consistency.
How do additions get chosen?
A white chocolate brownie can stay very sweet on its own.
Ingredients providing contrast go in.
Raspberries; their acidity balances the sugar.
Pistachios and walnuts; they add both texture and a mild bitterness.
Lemon zest; even a teaspoon makes a clear difference.
Salt gets used too; a pinch of sea salt goes over the top surface, cutting the sweetness and making the product more balanced.
How does a brownie get cut?
The brownie gets cut once cooled completely.
A hot brownie falls apart.
An hour in the fridge makes cutting easier.
A thin, sharp knife gets used.
The knife goes into hot water and gets dried after every cut.
Square pieces run four or five centimetres; because a brownie is dense and sweet the portions stay small.
How does a brownie get stored?
Four or five days at room temperature in an airtight container.
Being high in fat it resists drying.
A week in a fridge, though cold hardens the texture and it waits twenty minutes at room temperature before serving.
It keeps three months in a freezer.
The slices get wrapped singly and frozen; thawing happens at room temperature and a brownie comes through the process almost untouched, which makes it one of the desserts best suited to freezing.
How does the white chocolate get melted?
That is the step where mistakes happen most, and it stems from the particular behaviour of white chocolate.
Its melting point runs low because it contains no cocoa solids; it turns fully fluid around fifty-five degrees.
But above sixty the milk proteins coagulate and the chocolate turns grainy.
That deterioration cannot be reversed.
It does not melt directly over a burner; a bain-marie gets used.
It melts in a bowl over boiling water with the base of the bowl clear of the water.
Stirring runs continuously.
The butter melts together with the chocolate; melted together, the two fats give a more stable mixture and the risk of separation falls.
A single drop of water makes the chocolate seize; the bowl and the spoon therefore have to be completely dry.
The melted mixture cools to forty degrees before joining the eggs; eggs added to hot chocolate cook and leave white specks in the batter.
Those specks never disperse, so the temperature check is worth the extra minute.
How does the tin get prepared for a brownie?
Preparing the tin is the single step letting a brownie come out cleanly.
A square metal tin gets preferred; twenty or twenty-two centimetres.
Baking paper lines the base and hangs over the sides.
That overhang serves as a handle for lifting the brownie once cool.
The sides get greased too.
A silicone tin works as well, though the edges brown less and the characteristic brownie edge never forms.
