Key lime custard cups

Recipe Difficulty
Recipe Preparation Time
20 min
Recipe Cooking Time
15 min
Recipe Servings

Graham Cracker Crust

1 Cup                 Graham cracker crumbs

¼ Cup                 Melted butter or coconut oil

¼ Cup                 Cane sugar


6                          Egg yolks

½ Cup               Cane sugar

¼ Cup                 Key lime juice

¼ Cup                 Key lime zest, divided

¼ Cup                 Cornstarch

2 Cups                a2 Milk™ 3.25 % Homogenized Milk

2 tsp.                  Vanilla extract

½ Tbsp.              Melted butter or coconut oil


To make the crust, combine the graham cracker crumbs, butter and sugar in a small mixing bowl. Spoon the mixture into 4 dessert cups and gently press down. Set aside.

In a mixing bowl, beat the egg yolks, sugar, key lime juice and half of the zest until smooth but not frothy.

Sift the cornstarch to the egg mixture and whisk to incorporate.

In a saucepan, whisking, slowly bring the a2 Milk and vanilla to a low simmer.

Whisking, pour ½ cup of the hot milk mixture into the egg mixture to temper.

Slowly add the tempered egg mixture to the saucepan with the remaining hot milk mixture and incorporate. Whisking constantly, cook the custard until just thickened (should coat the back of a wooden spoon), about 5 minutes.

Remove the custard from the heat and stir the coconut oil. Pour over the crusts.

Chill the custard cups for 20-30 minutes and garnish with remaining lime zest to serve.

Copyright © 2022 The a2 Milk Company Limited

a2 Milk™ is not suitable for anyone medically diagnosed with lactose intolerance, galactosaemia or cows’ milk allergy

“a2 Milk™“, “a2™“, “True a2®“, and “The a2 Milk Company™” are trademarks of The a2 Milk Company Limited