The Hairy Bikers continue their search for Britain's best family of cooks. Over the next eight weeks, 40 families will compete in a series of culinary battles resulting in just one winner. Their special guest is Strictly Come Dancing's Kristina Rihanoff, who cooks a traditional Russian borscht. Plus The Bikers serve up their dish of the day, lemon profiteroles. Viewers can cook along to the 7-Minute Supper, seared salmon with dill hollandaise. Check out the website bbc.co.uk/hairybikers for recipe details.