Preheat the oven to 350℉insert. Grease and line insert 3X8-inch pans with parchment paper.
Sift all dry ingredients together and set aside.
3¾ cups All-purpose flour, 1 tablespoon Cocoa powder, 1½ teaspoon Baking soda, ½ teaspoon Salt
Mix the eggs, buttermilk, sour cream, oil, and vanilla extract in a large mixing bowl until smooth.
1 tablespoon Vanilla extract, 1¼ cup Buttermilk, 3 Eggs, 1¼ cups Oil, ¼ cup Sour cream
Add the sugar to the above mixture and mix well.
2½ cup Granulated sugar
Mix in the orange zest.
1 tablespoon Orange zest
Next, add the Red Gel Food Colouring and White Vinegar. Add the sifted dry ingredients and gently fold them in.
2 teaspoon White vinegar, 1 teaspoon Red food gel colour
At the end, add the hot water to dilute the batter. Divide the batter between three 8-inch pans and bake for 30 minutes in a 350F oven. Let them cool down in the pan for 10 minutes, then transfer them to the cooling rack to cool down fully.
⅓ cup Hot water
How To Make The Cream Cheese Frosting
Beat the butter with the paddle attachment until light and fluffy.
½ cup Butter
Add room-temperature cream cheese and beat well with the butter. The mixture should be smooth and creamy.
8 ounce Cream cheese
Add the powdered sugar ¼ cup at a time and beat in between.
3-4 cups Powdered sugar
Add the vanilla extract and orange zest, if using. Frost the cool cakes, then decorate the top with cream cheese and sprinkles. I used Mini Heart, Valentine Sprinkles.