FARMHOUSE PANNA COTTA

- 2 tablespoons cold water
- 1½ teaspoons unflavored gelatin
- 3 cups heavy cream
- ½ cup sugar, or more to taste
- Pinch of salt
- 1½ teaspoons vanilla extract
- 1 cup (an 8-ounce container) sour cream
Instructions:
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- Put the cold water in a small cup, and sprinkle the gelatin over it. Let it stand for 5 minutes.
- Meanwhile, in a 3-quart saucepan, warm the cream with the sugar, salt, and vanilla over medium-high heat. Do not let it boil. Stir in the gelatin mixture until thoroughly dissolved. Take the cream o