COMBINE sweetened condensed milk, half-and-half, vanilla and salt in large bowl. Beat with electric mixer on medium speed until blended.

BEAT heavy cream in separate large bowl with same beaters until stiff peaks form. Add to sweetened condensed milk mixture, folding in until completely blended.

POUR mixture into 9 x 5-inch loaf pan or other 2-quart freezer-safe container. Cover and freeze 6 hours or until firm.

To customize basic vanilla ice cream, add one or more favorite stir-ins prior to freezing. Soft stir-ins such as ice cream topping or jam may be blended into the sweetened condensed milk mixture in step 1, or for a "ribbon" effect, may be swirled in by spooning between layers of the ice cream mixture prior to freezing. Hard stir-ins, such as nuts, chopped candy bars, baking chips and toasted coconut should be folded in with the whipped cream in step 2. Use a 2 1/2- to 3-quart freezer-safe container for storage.