Evaporated milk and sweetened condensed milk are not the same, so don’t be tempted to substitute one for the other after accidentally picking up the wrong can at the grocery store.
Sweetened condensed milk is mixed with a sweetener. If you find your self in a pinch this mix will do: 1 cup plus 2 tablespoons powered milk, ¾ cup granulated sugar and ½ cup warm water.
Buttermilk also known as cultured milk and can be replaced by sour milk. Take one tablespoon vinegar or lemon juice, place in a measuring cup and fill with enough milk to make one cup. Do not stir, let stand for five minutes before using.