Recipe is here
Ingredients:
1 1/2 cups all-purpose flour
1 cup granulated sugar
1/4 cup unsweetened cocoa powder
1 teaspoon baking soda
1/2 teaspoon salt
1 cup warm water
1/3 cup vegetable oil
1 tablespoon white or apple cider vinegar
1 teaspoon vanilla extract
Optional toppings: frosting, sprinkles, chocolate chips, whipped cream, etc.
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