2. MIX the condensed milk, lemon peel and lemon juice in a medium bowl; set aside.
3. BEAT beat 2 cups of the whipping cream and the food color in large bowl, with the electric mixer on high speed, until stiff.
4. FOLD the lemon mixture into the whipped cream until just blended. Spoon it into the crust. Cover; refrigerate at least 3 hours until set.
5. BEAT the remaining 1 cup of whipping cream in a medium bowl with an electric mixer on high speed, until stiff. Spoon dollops on top of the pie or on slices of pie when serving. Store the pie covered in the refrigerator.
THE DIFFERENCE BETWEEN EVAPORATED MILK AND SWEETENED CONDENSED MILK
The quickest explanation is in the names: sweetened condensed milk has added sugar and evaporated milk doesn’t. It is also much thicker: Evaporated milk pours like regular milk, but sweetened condensed milk pours like molasses. They are not interchangeable in recipes, but both can be used in coffee.
Evaporated milk is fresh cow’s milk from which about 60% percent of the water has been removed by evaporation. It’s then homogenized, fortified with vitamins and stabilizers, canned and sterilized. The heat from the sterilization gives the milk a bit of a caramelized flavor, and makes the color slightly darker than fresh milk. Evaporated milk was originally called unsweetened condensed milk, although that term is no longer used.
Sweetened condensed milk also has about 60% percent of the water removed, then sugar is added as well as vitamin A. Condensed milk contains 40% to 45% sugar, but it means that no (or less) added sugar is required in the recipe. Condensed milk requires no sterilization, since sugar is a natural inhibitor of bacteria growth. It is darker and more yellow in color than evaporated milk.
THE HISTORY OF EVAPORATED MILK & SWEETENED CONDENSED MILK?
Both were invented by Gail Borden, who subsequently formed the dairy company that bears his name. In 1852 he was traveling transatlantic when the cows aboard ship became too seasick to provide milk (and there was no refrigeration in those days to keep milk fresh). He began to experiment, and two years later produced a canned milk that did not go sour at room temperature for three days after the can was opened.
Borden received a patent for sweetened condensed milk in 1856 and began commercial production the following year. Unsweetened condensed milk, now called evaporated milk, took more time to perfect since it didn’t have the sugar to inhibit bacteria growth. It was finally canned successfully in 1885.
In the days before refrigeration, both evaporated and sweetened condensed milk were used more than fresh milk because they were less likely to spoil and harbor harmful bacteria.