Buckwheat pancakes with balsamic strawberries

Ingredients

• 1/2 cup gluten-free self-raising flour
• 1/2 cup buckwheat flour
• 1 tablespoon caster sugar
• 1 cup buttermilk
• 2 eggs, separated
• vanilla yoghurt, to serve
• Balsamic strawberries
• 250 gram punnet strawberries, hulled, halved
• 1/4 cup brown sugar
• 1 1/2 tablespoon balsamic vinegar