Raspberry Gratin2

This raspberry gratin is the French summer dessert that turns 4 baskets of fresh raspberries into something approaching a soufflé. Berries get a quick maceration with sugar and framboise raspberry brandy, then a featherlight egg batter spooned on top in mounds that puff dramatically in the oven.

The batter is essentially a quick soufflé: stiff-peaked egg whites lifted with sugar, then yolks and a whisper of flour folded in to give it just enough body to hold the puff. The 6-to-5 ratio of whites to yolks favors the whites, which means more rise and a softer interior.

The high-heat 450°F (230°C) bake is what creates the dramatic golden tops in just 10 minutes. Any longer and the egg structure dries out; any shorter and the centers stay raw.

Framboise (raspberry brandy or eau de vie) deepens the berry flavor and adds adult complexity. Use the real thing if you can find it; orange liqueur substitutes acceptably but loses the raspberry-on-raspberry intensity.

Serve immediately. This dessert deflates within 2 minutes of leaving the oven.

Pro Tips

• Don’t wash the raspberries. The recipe is explicit about this: water rotting fruit makes them weep and you lose the structural integrity in the gratin.
• Fold the yolks and flour into the whites in three additions. Folding all at once deflates the meringue completely.
• Spoon the batter in distinct mounds, not a smooth layer. The mounds rise into individual peaks; a smooth top sinks unevenly.
• Eat within 2 minutes of pulling from the oven. Egg desserts collapse fast.

Variations

• Use strawberries and Grand Marnier instead of raspberries and framboise for a different berry version.
• Add 1 teaspoon of vanilla extract to the batter for a sweeter, more pastry-leaning profile.
• Mix raspberries with blackberries for color contrast and deeper flavor.