Lemon Sponge

Method 6 steps

1. 1

   Lightly beat egg yolks.

2. 2

   Mix the sugar and flour together, then add the lemon juice and zest, yolks, butter and salt.

3. 3

   Stir in the milk and mix well.

4. 4

   Whip the egg whites until stiff and fold into the first mixture.

5. 5

   Pour batter into custard cups or ramekins.

6. 6

   Set the cups in a pan of hot water and bake at for about 40 minutes.