1 Bowl Chocolate Cake. Preheat oven to 350 degrees f (175 degrees c). Mix the sugar, flour, cocoa, baking powder, baking soda and salt in a large bowl.

In a large mixing bowl combine flour, sugar, cocoa powder, baking soda, baking powder, and salt. Sift flour, cocoa powder, baking powder, and salt.
Heat Oven To 350 Degrees F.
Slowly add the sifted cocoa powder and sr flour and mix until combined. Lightly grease a cake pan with cooking spray and line with baking parchment. Turn on the mixer and allow the dry.
Preheat The Oven To 350 Degrees F.
Adjust the rack to the center of the oven. In a large bowl, combine sugar, flour, cocoa, baking powder, baking soda and. Beat with an electric mixer on low speed until just combined.
Carefully Add The Boiling Water And Mix.
Stir in hot water and sour cream, mixing until combined. Line a 20cm round cake pan with baking paper and set aside. Allow to sit for 5 minutes until thickened.