Ingredients
- 1/2 cup white sugar
- 4 egg yolks
- 1 teaspoon cornstarch
- 1 3/4 cups boiling milk
- 1 teaspoon vanilla
- 1 tablespoon rum
Method
- In a small saucepan, gradually beat the sugar into the eggs and continue beating until mixture is pale yellow.
- Beat in the cornstarch.
- Continue beating and gradually pour in boiling milk.
- Put pan over medium-low heat.
- Stir constantly and cook until spoon is coated in a light, creamy layer (do not simmer!).
- Remove from heat and beat for 1-2 minutes.
- Beat in vanilla and rum.
- Set saucepan in cold water and stir until sauce is cooled.
- Cover and keep in fridge.
Source
Mastering the Art of French Cooking https://www.amazon.ca/Mastering-Art-French-Cooking-1/dp/0394721780