Chiffon cake is one of easiest cake that you can make ^^. It's versatile, you can eat it on its own or use it instead of the basic sponge. This chiffon is very soft and moist, and has some texture. The preparation for the pan is the same as the sponge because you want the cake to cling to the pan while baking and cooling, to prevent the cake to shrink.
Basic Chocolate Chiffon Cake
Makes 20 cm Cake
¾ cup + 1 tablespoon (195 ml) (4 oz/110 g) all-purpose flour
1/4 cup (60 ml) (3/4 oz/20 g) cocoa powder
1 teaspoon (5 ml) (4 gm) baking powder
3/4 cups (180 ml) (6 oz /170 gm) sugar
1/2 teaspoon (2½ ml) (1½ gm) salt, preferably kosher
1/4 cup (2 fl oz/60 ml) vegetable oil
3 large egg yolks
⅓ cup + 1 tablespoon (3.17 fl oz/95 ml) water
1 teaspoon (5 ml) pure vanilla extract
5 large egg whites
¼ teaspoon (1¼ ml) (1 gm) cream of tartar
Preheat the oven to moderate 325°F (160°C/gas mark 3).
Line the bottom of an 8-inch (20 cm) spring form pan with parchment paper. Do not grease the sides of the pan.
In a large mixing bowl, stir together the flour, cocoa powder and baking powder. Add in all but 3 tablespoons (45 ml.) of sugar, and all of the salt. Stir to combine.
In a small bowl combine the oil, egg yolks, water, and vanilla . Whisk thoroughly.
Combine with the dry ingredients and mix thoroughly for about one minute, or until very smooth.
Put the egg whites into a stand mixer, and beat on medium speed using a whisk attachment on a medium speed, until frothy. Add cream of tartar and beat on a medium speed until the whites hold soft peaks. Slowly add the remaining sugar and beat on a medium-high speed until the whites hold firm and form shiny peaks.
Using a grease free rubber spatula, scoop about ⅓ of the whites into the yolk mixture and fold in gently. Gently fold in the remaining whites just until combined.
Pour the batter into the prepared pan. Bake for 45 to 55 minutes or until toothpick inserted into the center comes out clean.
Removed the cake from the oven and allow to cool in the pan on a wire rack.
To unmold, run a knife around the sides to loosen the cake from the pan and remove the spring form sides. Invert the cake and peel off the parchment paper. Refrigerate for up to four days.