Ground mustard (or mustard powder) is the pulverized form of the mustards you keep in your fridge and use on your hot dogs. When cooking with mustard powder, it's a versatile ingredient that can ...

English mustard powder and prepared English mustard is available in cans from most UK supermarkets. Mix the powder with cold water to the desired consistency before use. Serve with cooked ...

For the potato pastry, sift the flour into a bowl and season well with salt and freshly ground black pepper. Stir in the mustard powder. Add the diced butter and, using your fingertips ...