Preheat Oven: Set to 325°F (160°C).
Mix Ingredients: Whisk together eggs, plant-based milk, sweetener, vanilla extract, and salt until smooth.
Add Flavorings: Stir in optional spices or zest.
Prepare Ramekins: Pour mixture into ramekins. Place ramekins in a baking pan.
Create Water Bath: Fill the pan with hot water halfway up the sides of the ramekins.
Bake: 30–35 minutes until custard is set but slightly wobbly in the center.
Cool & Chill: Let cool 10–15 minutes at room temperature, then refrigerate for at least 1 hour. Serve warm or chilled.