Butter Cake

160g eggs (app. 3)
150g sugar
180g butter
70g plain flour
80g self raising flour
1 1/2 baking powder
pinch of salt
1/8 tsp cream of tartar
1/2 tsp vanilla extract (optional)
1/2 tbsp creamer (optional)

• Sift flour, salt, baking powder
• Beat butter for 2 mins till soft
• Add sugar and beat till light & fluffy (3 mins)
• Add in egg yolks, one at a time
• Scrape down the sides of the mixing bowl
• Add in vanilla extract, beat until combined
• Add in flour (low speed)
• Whisk egg whites until foamy, add cream of tartar, beat till stiff
• Fold in the whites into batter, don't overmix
• Bake for 45 mins, 150 Celcius