There’s something so satisfying about a cold, creamy custard straight from the fridge. These keto vanilla bean custard cups deliver exactly that, and they’re completely sugar free.

I love how few ingredients this recipe needs. You probably already have most of them in your kitchen, and the whole thing comes together without any complicated steps.
The best part is that these custard cups are low carb and keto friendly. You get a rich, indulgent dessert that fits perfectly into your way of eating.

Real vanilla bean gives these cups an incredible depth of flavor. It’s a small detail that really takes the whole dessert to the next level.
Whether you’re making them for yourself or for guests, these custard cups look and taste impressive. Nobody would ever guess they’re keto. They’re that good.
Why You’ll Love This Recipe
Silky Smooth Texture – This custard is incredibly creamy and velvety thanks to the rich heavy cream and egg yolk base.

Real Vanilla Bean Flavor – Using actual vanilla bean seeds gives this custard an amazing depth of flavor you just cannot get from extract.
Perfectly Keto Friendly – With erythritol as the sweetener and zero flour or sugar this custard fits right into your low carb lifestyle.
Recipe Ingredients
- 1 1/2 cups Heavy Cream
- 1/2 cup Unsweetened Almond Milk
- 4 large Egg Yolks
- 1/4 cup Granular Erythritol
- 1 Vanilla Bean (seeds scraped) or 2 tsp Vanilla Bean Paste
- Pinch of Sea Salt
How To Make
Step 1
Preheat your oven to 325 degrees F. Place 4 ramekins (6 oz each) inside a deep baking dish.
Step 2
In a saucepan, heat the heavy cream and almond milk over medium heat. Split the vanilla bean and scrape the seeds into the cream, adding the pod as well. Heat until the mixture is steaming and small bubbles appear around the edges, then remove from the heat and discard the pod.
Step 3
In a separate bowl, whisk the egg yolks with the erythritol and a pinch of sea salt until pale and slightly thickened, about 1 minute.
Step 4
Slowly pour the warm cream into the egg yolk mixture in a thin, steady stream, whisking constantly to temper the eggs without cooking them. Strain the custard through a fine-mesh sieve into a clean bowl for a perfectly smooth texture.
Step 5
Divide the custard evenly among the 4 ramekins. Pour hot water into the baking dish until it reaches about halfway up the sides of the ramekins to create a water bath.
Step 6
Bake for 35 to 40 minutes until the custard is set around the edges but still has a gentle jiggle in the center.
Step 7
Carefully remove the ramekins from the water bath and let them cool to room temperature. Refrigerate for at least 2 hours or until fully chilled and set before serving.

Tips
Temper the Eggs Slowly
When you pour the warm cream into the egg yolks, go really slow. Like, painfully slow. A thin stream while you whisk the whole time. If you dump it in too fast, the heat will scramble the eggs and you’ll end up with little egg chunks floating in your custard.
A good trick is to add just a couple tablespoons of the cream first, whisk it in, then add a little more, whisk again. After you’ve added about a third of the cream this way, the eggs are warmed up enough that you can pour the rest in a steady stream without worry.
Don’t Skip the Straining Step
Pouring the custard through a fine-mesh sieve before filling the ramekins makes a huge difference. It catches any tiny bits of cooked egg, vanilla bean fibers, or chalky erythritol that didn’t fully dissolve.

Without straining, you might not notice anything wrong until you take your first bite and hit a lumpy spot. It takes 30 seconds and gives you that perfectly silky smooth texture you want from a custard.
Get the Water Bath Right
The water bath is what keeps the custard cooking gently and evenly. Use hot water from a kettle or very hot tap water, not cold water. Cold water will take forever to heat up in the oven and throw off your baking time.
Pour the water in after you’ve already placed the baking dish on the oven rack. This way you don’t have to carry a heavy dish full of water across the kitchen, and you won’t accidentally splash water into the ramekins.
Make sure the water comes about halfway up the sides of the ramekins. Too little water and the bottoms of your custards can overcook.
More Recipes
- Keto Caramel Flan
- Keto Mocha Panna Cotta
- Low Carb Creme Brulee
- Low Carb Vanilla Panna Cotta
- Keto Banana Pudding Cups
Frequently Asked Questions
Why do I need to strain the custard through a sieve?
Straining catches any tiny bits of cooked egg that may have formed while you were tempering, along with any vanilla bean fibers. It is the step that gives you that perfectly silky, smooth texture in the final custard.
If you skip it, you might end up with small lumps or a slightly grainy feel. It only takes a few seconds and makes a big difference, so it is definitely worth doing.
Keto Vanilla Bean Custard Cups
Ingredients
- 1 1/2 cups Heavy Cream
- 1/2 cup Unsweetened Almond Milk
- 4 large Egg Yolks
- 1/4 cup Granular Erythritol
- 1 Vanilla Bean (seeds scraped) or 2 tsp Vanilla Bean Paste
- 1 pinch Sea Salt
Equipment
- ramekins
- fine mesh sieve
- deep baking dish
Instructions
- Preheat your oven to 325 degrees F. Place 4 ramekins (6 oz each) inside a deep baking dish.
- In a saucepan, heat the heavy cream and almond milk over medium heat. Split the vanilla bean and scrape the seeds into the cream, adding the pod as well. Heat until the mixture is steaming and small bubbles appear around the edges, then remove from the heat and discard the pod.
- In a separate bowl, whisk the egg yolks with the erythritol and a pinch of sea salt until pale and slightly thickened, about 1 minute.
- Slowly pour the warm cream into the egg yolk mixture in a thin, steady stream, whisking constantly to temper the eggs without cooking them. Strain the custard through a fine-mesh sieve into a clean bowl for a perfectly smooth texture.
- Divide the custard evenly among the 4 ramekins. Pour hot water into the baking dish until it reaches about halfway up the sides of the ramekins to create a water bath.
- Bake for 35 to 40 minutes until the custard is set around the edges but still has a gentle jiggle in the center.
- Carefully remove the ramekins from the water bath and let them cool to room temperature. Refrigerate for at least 2 hours or until fully chilled and set before serving.