Japanese Souffle Pancakes

Ingredients

• 2 1/2 tbsp skim milk
• 1 1/2 tbsp skim milk
• cooking oil spray
• 1 tbsp unsalted butter, melted
• 2 large eggs
• 2 large eggs, separated
• 5 tbsp cake flour
• 2 1/2 tbsp granulated white sugar
• 1/4 tsp vanilla extract
• 3 tbsp granulated white sugar
• 1/4 tsp cream of tartar
• 6 tbsp cake flour
• 1 tsp baking powder
• 1/2 tbsp full fat mayonnaise
• 1/2 tsp vanilla extract