Maple Cake

Ingredients: 

4 egg whites
50g sugar

50g flour
20g sugar
100g milk
1 egg yolk
maple extract
vanilla bean paste -- optional
pinch of salt

50g flour
1/4tsp baking powder

Dissolve sugar in warm milk. Whisk milk into first 50g of flour, followed by egg yolk, extract, and salt.

Beat egg whites until stiff with the sugar. Pour milk mixture in while whisking, then sift into flour.

Divide into 12 cupcake forms and bake at 160C.

Notes: 
The cupcakes did not open up, and were too chewy. I think that was too much milk for 12 cupcakes. I am going to increase the egg yolks and decrease the milk.