These jello cups are made from raspberry puree, gelatin and erythritol, and the deep red color is what earns the “bloody” name for a Halloween table. A little vanilla rounds out the berries, and a layer of whipped cream goes on once the jello has set. The recipe makes 4 cups. Hands-on time is about 20 minutes, but the jello needs at least 4 hours in the refrigerator.
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What Goes in the Cups
The amounts are on the recipe card.
- Raspberry puree (2 cups): the color and the flavor. It brings natural sweetness and a tangy edge.
- Water (1 cup): the liquid that dissolves the erythritol and gelatin.
- Gelatin powder (1 tablespoon): sets the jello and gives it the jiggle.
- Erythritol (1/2 cup): a low-carb sweetener, so the cups stay sugar-light.
- Vanilla extract (1 teaspoon): adds a warm, aromatic note that goes with the raspberries.
- Heavy cream (1/2 cup): whipped for the topping. Its richness balances the tartness of the berries.

Getting the Set Right
Dissolve the erythritol in the water over heat, bringing it to a boil and stirring until it has dissolved. Mix in the gelatin and keep stirring until it is completely gone, with no lumps. That step decides the texture. Take the pan off the heat, add the raspberry puree and vanilla, and stir well. Pour the mixture into cups and refrigerate.
Give the cups at least 4 hours. That is how long the gelatin needs to set so each cup holds its shape. If you are short on time on the day, make them a day ahead.
Ways to Change Them
- Citrus: add a splash of lemon or lime juice to the raspberry puree for a brighter, tangier flavor.
- Layers: pour a layer of raspberry jello, then add a layer of whipped cream mixed with a little vanilla extract.
- Berry mix: blend raspberries with strawberries or blueberries for the puree.

Dressing Them Up for Halloween
Fresh raspberries or a dollop of whipped cream go on top, and a sprinkle of unsweetened cocoa powder gives a “dirt” effect. A few mint leaves add contrast. Clear plastic cups or small glass jars show off the color. Gummy worms, edible glitter, miniature spiders and Halloween-themed cups or straws all add to the spooky theme.
On a dessert table, these sit well next to chocolate-covered strawberries or keto-friendly cookies, and a platter of assorted cheeses and nuts gives a balance.

How Long It Takes
Prep is 15 minutes. Cooking takes 5 minutes, just enough to dissolve the erythritol and gelatin in boiling water. The total is 4 hours 20 minutes, including the chilling.
Nutrition per Cup
Each cup has about 150 calories, 14 grams of fat (9 grams saturated), 3 grams of carbohydrates, 0 grams of fiber, 1 gram of sugar, 2 grams of protein and 10 milligrams of sodium.
FAQ
How long do the cups need to chill?
At least 4 hours in the refrigerator, so the gelatin sets properly.
Can I use other berries?
Yes. A mixed berry puree works in place of raspberry alone.
Can I make them ahead?
Yes. They can be made in advance, which is useful for a party.
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Written and edited by The Foodie Yummy Kitchen Team
The Foodie Yummy Kitchen Team writes and edits the recipes on Foodie Yummy: classic American potluck salads, holiday sides and easy comfort food, with a few low-carb options. Every recipe lists exact quantities, numbered steps and a printable recipe card, plus notes on swaps, storage and make-ahead timing. Spot a problem with a recipe? Tell us through the contact page and we will correct it. About us
Bloody Raspberry Keto Jello Cups
Ingredients
Instructions
In a saucepan, combine the water and erythritol. Bring to a boil and stir until dissolved.
Mix in the gelatin powder and stir until completely dissolved.
Remove from heat and add raspberry puree and vanilla extract. Stir well.
Pour the mixture into cups and refrigerate until set.
Once set, top with whipped cream and serve.
Notes
For best results, chill in the refrigerator for at least 4 hours before serving.
Can be garnished with fresh raspberries for added flavor.
Nutrition
| Serving Size | 1 cup |
|---|---|
| Calories | 150 calories |
| Sugar Content | 1g |
| Sodium Content | 10mg |
| Fat Content | 14g |
| Saturated Fat Content | 9g |
| Unsaturated Fat Content | 4g |
| Trans Fat Content | 0g |
| Carbohydrate Content | 3g |
| Fiber Content | 0g |
| Protein Content | 2g |
| Cholesterol Content | 50mg |
