This Keto Vanilla Custard is a rich, silky dessert made with just a few simple ingredients. Smooth, creamy, and naturally low in carbs, it delivers all the indulgence of classic custard—without the sugar.
Perfect for anyone following a keto or low-carb lifestyle, this recipe is elegant enough for guests yet easy enough for everyday cravings.
Ingredients
The Core Trio
- 4 large eggs (room temperature) – The base that creates a smooth, custard-like texture
- 2 cups heavy cream (or whipping cream) – Adds richness and a melt-in-your-mouth feel
- 1/3 cup granulated erythritol or monk fruit sweetener – A sugar-free option that keeps carbs low
Optional Flavor Boost
- 1 teaspoon vanilla extract (highly recommended)
- Pinch of salt (enhances flavor)
Ingredient Notes & Substitutions
- Eggs: Room temperature eggs mix more evenly and prevent lumps
- Cream:
- Use half-and-half for a lighter version
- Use full-fat coconut milk for dairy-free (adds slight coconut flavor)
- Sweetener Options:
- Allulose (best for smooth texture)
- Stevia blends (adjust quantity)
- Avoid liquid sweeteners—they can affect consistency
Instructions
Step 1: Preheat Oven
Preheat your oven to 325°F (160°C).
Step 2: Whisk Eggs & Sweetener
In a mixing bowl, whisk eggs and sweetener until smooth and slightly pale.
Step 3: Heat the Cream
Warm the heavy cream gently in a saucepan (do not boil).
Step 4: Temper the Eggs
Slowly pour the warm cream into the egg mixture while whisking continuously.
This prevents the eggs from scrambling.
Step 5: Add Flavor
Stir in vanilla extract and a pinch of salt.
Step 6: Bake in Water Bath
Pour the mixture into ramekins or a baking dish.
Place them in a larger pan and add hot water halfway up the sides.
Bake for 30–40 minutes, until the custard is set but slightly jiggly in the center.
Step 7: Cool & Chill
Let cool at room temperature, then refrigerate for at least 2 hours before serving.
Who Is This Recipe For?
- Keto or low-carb dieters
- Anyone avoiding sugar
- Dessert lovers wanting a light but satisfying treat
- Beginners looking for a simple custard recipe
Why It’s Great
- ✔ Low-carb and sugar-free
- ✔ Ultra creamy and smooth texture
- ✔ Only a few ingredients
- ✔ Easy to customize flavors
- ✔ Elegant yet simple dessert
Kitchen Equipment Needed
- Mixing bowl
- Whisk
- Saucepan
- Baking dish or ramekins
- Large pan (for water bath)
Storage
- Refrigerator: Up to 4 days
- Freezer: Not recommended (texture may change)
- Cover tightly to prevent absorbing fridge odors
FAQ
Is this truly keto-friendly?
Yes, it uses low-carb sweeteners and high-fat ingredients aligned with keto macros.
Why use a water bath?
It ensures gentle, even cooking and prevents cracking.
Can I make it dairy-free?
Yes—use full-fat coconut milk instead of cream.
How do I know it’s done?
The center should be slightly jiggly but not liquid.
Conclusion
This Keto Vanilla Custard proves that simple ingredients can create something truly luxurious. Creamy, smooth, and perfectly sweet without sugar, it’s a dessert you can enjoy without guilt.
