Fry 2 onions, halved and thinly sliced, in 2 tsp (10 ml) olive or canola oil in a large frying pan until completely soft. Season with 1 tsp (5 ml) dried or 2 tsp (10 ml) fresh thyme leaves, lemon juice and black pepper. Divide 2 tbsp (30 ml) softened butter between 12 slices of low GI, brown or wholewheat bread. Spread 2 tbsp (30 ml) chutney on 6 slices of bread. Slice 2 large ripe tomatoes and arrange on the 6 bread slices. Divide onions and ½ cup (125 ml) grated cheddar or mozzarella cheese between the 6 slices and top each with a second bread slice. Place in a closed-hinged braai grid and toast over medium to low coals. Take care that the bread doesn’t burn before the filling starts to heat up and the cheese melts. Serve 1 braaibroodjie per person if this is the only starch for the meal. With more starches, serve only a half.