Egg White Cake

I got this recipe on nami-nami.blogspot.com. I haven't tried it yet but I thought it would be a good way to not waste egg-whites left over from separating out yolks.

• Ready In: 45 mins
• Serves: 8-10
• Yields: 1 cake

Ingredients

• 6  large  egg whites
• 250  g caster sugar
• 160  g all-purpose flour
• 1  tablespoon potato starch or 1  tablespoon cornflour
• 1  teaspoon baking powder
• 100  g butter, melted and slightly cooled

Directions

1. Whisk the egg whites with 2 Tbsp of sugar until thick and pale and very foamy. Mix the rest of the sugar with flour, potato starch and baking powder, then sift into the egg mixture and fold in gently.
2. Finally fold in cool melted butter.
3. Pour the batter into a buttered bundt-form and bake in a pre-heated 180 C oven for 30-40 minutes. Test for doneness with a wooden toothpick.
4. Cool slightly before turning out of the cake tin.