Whisk together cream and 3 tablespoons sugar in a microwave-safe bowl until combined. Cook in the microwave until warm, 1 to 2 minutes; whisk again to dissolve sugar. Whisk in egg yolks and vanilla until smooth.
2
Pour cream mixture into 2 ramekins set in a roasting pan. Pour enough hot water into the pan to reach halfway up the sides of the ramekins.
3
Bake in the preheated oven until custard is set but slightly jiggly in the center when shaken, about 50 minutes. Remove ramekins from hot water and chill in the refrigerator until cold, at least 2 hours.
