Preheat oven to 375°. Measure 3 tablespoons (58g) of sweetened condensed milk from one can and set aside. This will be used to sweeten the whipped cream.
To make pie filling, in a large bowl mix the rest of the sweetened condensed milk, egg yolks, and lemon juice with a wire whisk until well combined.
Pour filling into crust and bake pie for about 15 minutes,, until filling is mostly set with just a little jiggling in the center.
Remove pie from the oven and place on a wire rack to cool completely. Chill in refrigerator for at least 3 hours.
In the bowl of stand mixer fitted with the whisk attachment (or a large bowl with an electric mixer), add heavy whipping cream, reserved 3 tablespoons sweetened condensed milk, and vanilla extract and whip on medium high to soft peaks. Spread on top of pie. For neater slicing, refrigerate for an additional hour. Cut into slices and serve. Store in refrigerator for no more than 4-5 days. It won't last that long anyway because everyone will fight over it 😋
Notes
Pie will keep in the refrigerator for 4-5 days, IF it lasts that long. It's so good, I doubt it will 😋