Slowly add the milk mixture and whisk until it has thickened. Heat oven to 190C, 170C fan, gas 5. Blanch the lasagne sheets in a pan of salted, boiling water for a couple of minutes, cooking ...

Making lasagne from scratch can seem complex at first ... The bechamel sauce is a simple mixture of butter, flour, and milk. Article continues below ADVERTISEMENT But Mary Berry makes her white ...

Pour the milk into an 8-by-12-inch baking dish ... Spread the mixture evenly over the top of the lasagna, sprinkle with the remaining 1 cup of Parmesan, and dot with the butter.