The robust flavour of these waffles, made with wholemeal and buckwheat flours and linseed, is complemented by a sweet, tangy fruit sauce. The yield here is based on using a waffle iron or maker with two 10cm (4in) squares.
*You can make the waffles partially or completely in advance. For the former, mix the dry ingredients and freeze in a resealable plastic bag. Just before cooking, add the eggs and buttermilk as instructed in the recipe. Or prepare and cook the waffles, then cool them and wrap in foil. Refrigerate or freeze. At serving time, toast in a toaster or under the grill. You can also make the sauce in advance.
*Use fresh blueberries in place of raspberries.
Linseed oil is a rich source of omega-3 fatty acids, which help reduce the risk of heart disease and stroke. To make the linseeds' oil and fibre available to the body, the seeds need to be ground.