Lemon Ice Cream

I have had success with the following recipe that I adapted from one
at Eating Well's website (http://eatingwell.com/recipes). Here in
Switzerland we don't have such things as sweetened condensed milk made
with skimmed milk, so I made my own - the recipe follows that for ice
cream.
Lemon Ice Cream
1 14-ounce can nonfat sweetened condensed milk
2 cups non-fat milk
2/3 cup fresh lemon juice
1 tablespoon grated lemon zest
1/8 teaspoon salt
In a mixing bowl, whisk together sweetened condensed milk, milk, lemon
juice, lemon zest and salt. Freeze in an ice cream maker according to
the manufacturer's directions. (Alternatively, freeze the mixture in a
shallow pan until solid, about 6 hours. Break into chunks and process in