Sugar + egg whites

• milk 300g
• lemon juice 100ml
• lemon zest 1/2
• sugar 150g
• egg yolks 5
• cornstarch 40g
• butter 50g

1. 1

   Boil milk with half the sugar.

2. 2

   In other recipient mix the yolks, cornstarch, limon juice an lemon zest.

3. 3

   Add the boiling milk slowly to the yolk mix.

4. 4

   Place the mix on the stove and mix until it thickens

5. 5

   Take it from the stove, add the butter and mix.