How to make cake / basic orange chiffon/best result,super soft

Ingredient:
Cake flour-100g (1cup)
Baking powder-1tsp(optional)
Sugar- 90g (½ cup)
Egg - 4
Salt - ¼ Tsp
vegetable oil-70ml (1/3 cup)
Orange juice - 50ml(3tbsp)
Orange zest - 3tsp
cream of tartar-¼ tsp(optional)


Method:

• Separate egg whites and yolks.
• In a bowl mix egg yolk, orange zest, salt, ½ of the sugar, orange juice, flour and oil. 
• Now whisk egg white, add rest of the sugar when egg white starts to foam but still liquid. 
• Add cream of tartar and beat until stiff peak forms. 
• Cream of tartar makes the meringue stable. 
• Now use a spatula to fold in egg white into the flour mixture very softly. 
• Add in 3 batches to avoid deflation of egg white. 
• Careful not to overmix, you don’t want the air pockets to deflate.
• Next line a 7” pan with parchment paper. 
• Avoid oil or butter to grease the pan.
• Grease-free pan helps the batter to rise properly. 
• Pour the batter in, tap the pan on the table to get rid of big air bubbles. 
• Preheat the oven to 175c (350f). Bake for 40-45 mins or until a toothpick comes out clean when you poke it into the middle of the cake.  
• After taking out of the oven let it cool upside down to prevent the cake to deflate.

Notes:

• the egg white will not whip up properly if there is any trace of egg yolk in the white. so separate carefully.
• Over baking causes dry cake, so check 5mins beforehand, as oven temperature may vary.
• Use a 9” pan if you want to double the recipe.
• you can use lemon juice instead of cream of tartar
• underbaking will shrink the cake after cooling down
• use a piece of aluminum foil to cover the cake after you achieve the right golden brown color you like to stop burning the top

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