
Ingredients
Ingredients, Shopping List amounts, and highlighted step quantities follow your servings. Keep temperatures, piece sizes, and cooking times as written; larger batches may need more pans. Check any flagged step against the ingredients.
Check off ingredients as you prep.
- 2 cups heavy whipping cream
- 1/2 cup Allulose or preferred keto-friendly granulated sweetener
- 1/3 cup fresh lemon juice
- 1 tbsp lemon zest, finely grated
- 1/2 tsp vanilla extract
- 1–2 tsp Salted Perfection Lemoncello Garnishing Salt, for finishing
Allergen check: Milk recognized in these ingredients. Check package labels and substitutions.
Step by step
- In a medium saucepan, combine the heavy cream and the keto sweetener over medium heat.
- Bring the mixture to a gentle boil, stirring constantly to ensure the sweetener dissolves completely.
- Let the mixture boil for about 3 to 5 minutes, watching closely so it doesn't boil over. You want it to reduce just slightly to concentrate the fats for a better set.
- Remove the pan from the heat and stir in the lemon juice, lemon zest, and vanilla extract. You will notice the cream start to thicken almost immediately as the acid reacts with the cream.
- Let the mixture sit for about 10 minutes to cool slightly before pouring it into four small ramekins or dessert glasses.
- Place the ramekins in the refrigerator and let them set for at least 4 hours, though overnight is even better for the best texture.
- Right before you serve them, sprinkle a pinch of the Salted Perfection Lemoncello Garnishing Salt over the top of each chilled posset to brighten the citrus notes and add a clean, crisp finish. DUNZO!
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A little more about this recipe
Timing
- Prep Time: 10 minutes
- Cook Time: 5 minutes
- Total Time: 4 hours 15 minutes
Yield & storage
Original yield
Storage
Store covered in the refrigerator for up to 3 days.
From Tony’s kitchen
A posset is the simplest magic trick in the kitchen. Three ingredients, a little heat, and you’ve got a silky, chilled dessert that’ll make people think you spent all day over the stove. We’re keeping it keto so you don’t have to worry about the carbs, but the flavor is pure Italian summer. It's smooth, tart, and hits the spot without the sugar crash.
Nutrition • per serving
Ingredient notes
Ingredients & allergen check
Major-allergen signals: Milk
- Heavy whipping cream
- Allulose or preferred keto-friendly granulated sweetener
- fresh lemon juice
- lemon zest
- vanilla extract
- Salted Perfection Lemoncello Garnishing Salt, for finishing
Lemoncello blend: Sea salt, Turmeric, Natural lemon flavor
Check every package label. Brands, substitutions, shared equipment, and cross-contact can change allergen exposure.

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