Use a hand mixer or a stand mixer to beat the cream in a large bowl until stiff peaks form; do not overwhip. When you remove the beaters and the cream stands at attention, the cream is finished.
Whisk the vanilla into the sweetened condensed milk in a separate, sizable bowl. Use a spatula to softly fold the whipped cream into the other mixture so that it stays airy and light.
If you're making many flavors, divide the cream mixture into smaller bowls before gently folding in your chosen add-ins. If you're preparing just one flavor, simply stir the ingredients into the cream mixture.
Place the mixture in paper containers or an insulated tub and freeze for 4-6 hours.
NOTES
Note that this recipe is an all-rounder, if you want the exact same results here are a few tips:
Transfer the cream base to a small ramequin.
Put on top of the filled ramequin some roasted almonds mixed with honey.
Make sure to cover the empty ramequin with plastic wrap so it makes it easier to flip down the ice cream.