Melt 30ml butter over medium heat, stir in 30ml cake flour to make a smooth paste and cook the flour for about 1 minute. Whisk in 500ml milk, stirring until the sauce boils and thickens.
Use this basic white sauce with added ingredients for new and exciting sauces.
To make a cheese sauce add 60g grated Cheddar. For a delicious herb sauce add 40g chopped watercress, basil, parsley or thyme.