
I’ve waxed lyrical about this before, but chestnut flour really is a wonderful option for gluten-intolerant eaters. It seems to complement chocolate particularly well, and our Chestnut Flour Brownies (Mark I) were even more popular with the masses than the original wheat flour version.
My friend Lisa has given up gluten recently, so I’ve started experimenting with new baked treats for her. I tweaked Nigel Slater’s wonderful brownie recipe to use chestnut flour, and the results were deeply flavoured and very moreish…
- 300g (10.5 oz) caster (superfine) sugar
- 250g (1 cup) unsalted butter
- 250g (8.8oz) dark chocolate (70%) – I used Callebaut callets
- 3 large (59g) eggs, plus 1 extra yolk
- 60g (2oz) chestnut flour
- 60g (2oz) dutched cocoa (or the best quality cocoa you have)
- ½ teaspoon baking powder
- pinch of salt
1. Line a 23cm square baking tin with parchment paper. Preheat the oven to 175C (350F) or 160C (320F) with fan.
2. Melt 200g (7oz) of the chocolate, either in a pyrex bowl in the microwave on short bursts, or over a pan of simmering water. Remove from heat as soon as the chocolate is melted. If you’re not using callets, chop the remaining chocolate into small pieces.
3. In a medium bowl, sift together the cocoa, chestnut flour and baking powder. Don’t skimp on this step, as both the chestnut flour and cocoa really need sifting, or you’ll get hard lumps in the finished brownie. Stir in a pinch of salt.
4. In a small bowl, lightly beat together the eggs and yolk with a fork.
5. In a large bowl, use an electric mixer to beat the sugar and butter until very light and fluffy. Gradually mix in the beaten eggs, mixing well between each addition.
6. Using a spatula, gently mix in both the melted chocolate and chocolate pieces, then carefully fold in the chestnut flour-cocoa mixture. Use a light touch, and try to keep as much air in the mix as possible.
7. Scrape the mixture into the prepared baking tin, smooth the top, and bake for 30 minutes, or until a tester inserted into the centre comes out a little moist, but free of raw batter. The brownie will firm up on cooling, so be careful not to overbake it. Allow to cool for at least an hour before serving.























