In a medium-size bowl, whisk together the sugar, flour and salt.
⅓ cup granulated sugar, 2 tablespoons all-purpose flour, ⅛ teaspoon fine sea salt
Whisk in half a cup of heavy whipping cream and continue whisking until no lumps remain. Whisk in remaining heavy whipping cream and banana or vanilla extract.
1 ½ cups heavy whipping cream, ½ teaspoon banana extract
Transfer contents to a medium-size saucepan and cook over medium-low heat, whisking continuously.
After about 5 minutes, when the mixture is warm but not boiling, pour ¼ cup of the cream mixture into the lightly beaten eggs and whisk vigorously to temper.
2 large egg yolks
Immediately pour the eggs into the saucepan and continue whisking over medium-low heat.
After several minutes, the pudding will start to thicken and bubble. Remove from heat.
Cover the top of the pudding with plastic wrap making sure that the entire surface of the pudding is in contact with the plastic wrap. Poke 5 holes into the plastic wrap using a toothpick to allow the heat to escape.
Let cool for 30 minutes at room temperature before transferring to refrigerator. Chill for 2 more hours.