Blackberry Gratin with Two Creams
Blackberry Gratin with Two Creams is a easy French recipe that serves 4. 540 calories per serving. Recipe by Once Upon a Time in Pastry on YouTube.
Prep: 20 min | Cook: 27 min | Total: 1 hr 2 min
Cost: $6.45 total, $1.61 per serving
Ingredients
- 4 units Egg yolks (medium-sized eggs)
- 80 g Granulated sugar
- 200 ml Thick crème fraîche (minimum 30 % fat)
- 1 tsp Ground cinnamon (optional)
- 200 ml Whole liquid cream (30 % fat, very cold)
- 300 g Fresh blackberries (washed and drained)
- 30 g Brown sugar (for gratinating)
Instructions
Prepare ingredients and equipment
Gather all ingredients, measure the quantities and preheat the oven to 180°C. Prepare the ramekins and the baking sheet.
Time: PT5M
Whisk egg yolks and sugar
In the bowl, whisk the egg yolks with the granulated sugar on medium speed until the mixture becomes pale and fluffy.
Time: PT5M
Add crème fraîche and cinnamon
Add the thick crème fraîche and cinnamon (if using) to the previous mixture and stir gently until homogeneous.
Time: PT2M
Whip the liquid cream into whipped cream
Pour the very cold liquid cream into a clean bowl and whisk on high speed until soft peaks form.
Time: PT5M
Fold the whipped cream into the base
Using a spatula, gently fold the whipped cream into the egg mixture by lifting the mass so it does not fall.
Time: PT2M
Place the blackberries in the ramekins
Evenly distribute the washed blackberries at the bottom of each ramekin.
Time: PT5M
Pour the custard over the blackberries
Fill each ramekin with the custard mixture up to about three quarters of the height.
Time: PT2M
Sprinkle brown sugar
Evenly scatter the brown sugar over the surface of each gratin.
Time: PT1M
Bake
Place the ramekins on the sheet and bake for 25 minutes at 180°C. The centre should be set but still slightly trembling.
Time: PT25M
Temperature: 180°C
Caramelize (optional)
If the brown sugar is not golden enough, place the ramekins under the broiler for 2 minutes, watching closely.
Time: PT2M
Temperature: 200°C
Rest and serve
Let cool for 10 minutes before serving. The gratin can be eaten hot or cold, according to your preference.
Time: PT10M
Nutrition Facts
- Calories
- 540
- Protein
- 6 g
- Carbohydrates
- 45 g
- Fat
- 35 g
- Fiber
- 4 g
Dietary info: vegetarian, gluten-free
Allergens: eggs, milk
Ingredient Substitutions
- Instead of Egg yolks: pasteurized egg yolks
- Instead of Granulated sugar: cane sugar
- Instead of Thick crème fraîche: double cream
- Instead of Ground cinnamon: ground nutmeg
- Instead of Whole liquid cream: whipped cream
- Instead of Fresh blackberries: raspberries
- Instead of Brown sugar: dark brown sugar
Equipment Needed
- Mixing bowl
- Electric whisk
- Silicone spatula (spatula)
- Ramekins (4)
- Baking sheet
- Oven
- Oven grill (optional) (optional)
- Measuring spoon
Critical Steps — Do Not Skip
- Whisk egg yolks and sugar until pale and fluffy
- Whip the liquid cream into a firm whipped cream
- Baking: the centre should remain slightly trembling to avoid a grainy gratin
- Caramelize the brown sugar to obtain a golden crust
Chef Tips from the Video
- Use a very cold metal bowl to whip the cream
- Sprinkle the brown sugar just before baking to prevent it from melting too early
- Choose glass ramekins for more even cooking
Troubleshooting
The gratin surface is cracked
Reduce the cooking time slightly or remove the gratin as soon as it is still slightly trembling.
Brown sugar does not caramelize
Use the broiler for 2‑3 minutes while constantly watching, or increase the oven temperature to 200°C for the last minutes.
Texture is too liquid after baking
Extend the baking by 5 minutes and check the centre firmness with a knife tip.
Storage
Refrigerator: Store in the refrigerator, covered, up to 24 hours.
Freezer: Not recommended, texture degrades.
Room temperature: Consume within 2 hours after cooking if served at room temperature.
Make-Ahead Tips
- Prepare the custard base and pour over the blackberries the day before; cover and refrigerate. Reheat for 10 minutes in the oven before serving.
Last updated: August 20, 2026






