In a saucepan over medium heat, whisk the heavy cream and milk until steam rises. Place the earl grey tea leaves in a reusable tea bag or tea ball, seal, and immerse it in the liquid to steep. Cover the pan, remove from the heat, and let steep for 10-15 minutes, then squeeze the sachet to release the flavor, and remove.
Whisk in 3/4 cup fig jam, orange zest, vanilla, and sea salt. Taste. Depending on the sweetness of your fig jam and your taste, add a tablespoon of honey (or omit).
In a small bowl, whisk two egg yolks with 1/2 cup of the ice cream mixture, then gradually whisk the egg yolk mixture back into the pan. Return to the stove, and cook over low heat, stirring continuously, until the custard reaches 170ºF, 20 to 25 minutes, or until it thickens slightly and coats the back of a spoon. Remove from heat.
Transfer to a bowl, cover, and cool completely in the fridge.
Once the custard is fully chilled, freeze it in the ice cream maker according to the manufacturer's instructions. Transfer to a freezer-safe container, and freeze for at least 4-6 hours before eating.
Serve with fresh figs, orange zest, a drizzle of olive oil, and flaky sea salt.