Use this recipe as the base for the below variations
| 2 | Cups | Milk |
| 1 1/4 | Cups | Sugar |
| 4 | Egg yolks | |
| 2 | Cups | Heavy cream |
| 1 1/4 | Tsp. | Vanilla extract |
Place the first three ingredients in a heavy saucepan over low heat, stirring constantly with a wooden spoon. Continue cooking custard, stirring constantly, until mixture reaches 180° on an instant-read thermometer, 5 to 8 minutes; do not let boil. Mixture will thicken slightly but will not coat back of spoon. Strain mixture. Cover and refrigerate untill well chilled, about 3 hours or overnight. Stir in 2 cups heavy cream and the vanilla. Freeze mixture in an ice cream maker according to manufacturer's directions. Transfer to bowl. Place in freezer until ready to eat.
Chop into small pieces: 2 ounces bittersweet chocolate. Cook custard recipe for the old fashioned vanilla recipe as above to 180°. Remove from heat and whisk in chopped up chocolate until melted. Strain through sieve and proceed with remainder of vanilla ice cream recipe. When done, place in freezer.
In a large pot, bring 4 quarts of water to a rolling boil. Add and cook for about 1 minute,3/4 pound fresh nectarines. Drain. When cool enough to handle, peel and pit the nectarines and cut into small pieces. Meanwhile, cut in half around pit; 3/4 pound mangoes. Score flesh of mangoes, then slice off in pieces. Combine nectarines and mango in food procesor and blend until smooth with 1 teaspoon fresh lemon juice. Prepare chilled custard for The Old-Fashioned Vanilla Ice Cream recipe above. Pour fruit puree along with cream into chilled custard and proceed with the remainder of the recipe. When done, place in freezer.