It seems that eating hazelnuts, and other tree nuts, can reduce your risk of cardiovascular disease. This is probably due to their impressive store of monounsaturated fat, vitamin E, and minerals, such as copper and magnesium, all of which reduce blood pressure and inflammation.Hazelnuts are full of oil, but there's no evidence they are fattening. Quite the contrary: people on nut-rich diets often show weight loss. An explanation for this is that eating nuts stimulates the metabolism and makes you burn more calories. Another is that the high fat, protein, and fibre composition of nuts gives them the "fullness factor" in spades, so when we eat them, we are left feeling satisfied, not tempted to stuff our faces with less healthy foods.
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Buying hazelnuts with their skin on makes them a bit cheaper. Guide price: £13.50-£15.50 per kg (blanched), £9-£13 per kg (skin on).Joanna Blythman is the author of What To Eat (Fourth Estate, £9.99). To order a copy for £7.99 with free UK p&p, go to guardianbookshop.co.uk
Baked beetroot with hazelnut dressing
New season beetroot is a wonderful foil for this hazelnut dressing, which also makes a great marinade and goes really well with goat's cheese. It is based on the Italian Agresto sauce.Advertisement
650g raw beetroot
150ml olive oil plus 2 tbsp
100ml verjuice or 60ml cider vinegar and 40ml apple juice
1 garlic clove, peeled and crushed
125g whole blanched almonds, toasted and roughly hopped
125g hazelnuts, skinless, toasted and roughly chopped
5 sprigs of basil, leaves picked and chopped
A small bunch of flat-leaf parsley, leaves picked and chopped
Salt and black pepper1 Preheat the oven to 180C/350F/gas mark 4. Wash the beetroot, leaving the skins on.2 Place in a baking dish or roasting tin - they should fit snugly. Toss with 2 tablespoons tbsp of the olive oil and plenty of salt and pepper, then cover the base of the dish with water. Cover with foil and roast for 45-60 minutes, or until a knife can slice easily through the largest beetroot.3 While the beetroot bakes, make the dressing. Simply whisk the olive oil, verjuice and garlic together until thoroughly amalgamated. Stir in the nuts and herbs and season to taste with salt and pepper.
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Hazlenuts are packed with healthy monounsaturates. Photograph: Tricia de Courcy Ling for the Guardian
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