Sorry, everyone…thanks for the kind note to include the ingredients!
Here it is:)
Nonstick vegetable oil spray
2¼ cups all-purpose flour
¾ cup natural unsweetened cocoa powder
1¾ teaspoons baking powder
¼ teaspoon baking soda
½ teaspoon kosher salt
3 large eggs
1½ cups sugar
1¼ cups mayonnaise (not low-fat)
1 tablespoon vanilla extract
Three 8”-diameter cake pans
Preheat oven to 325°. Lightly coat cake pans with nonstick spray and line bottoms with parchment paper; spray again. Whisk flour, cocoa powder, baking powder, baking soda, and salt in a medium bowl.
Using an electric mixer on high speed, beat eggs and sugar until pale and doubled in volume, about 4 minutes. Add mayonnaise and vanilla and beat until just combined. With mixer on low speed, add dry ingredients in 3 additions, alternating with 1⅓ cups lukewarm water in 2 additions, beginning and ending with dry ingredients. Scrape batter into pans, dividing evenly.
Bake cakes, rotating halfway through, until a tester inserted into the centers comes out clean, 25–30 minutes. Transfer pans to wire racks and let cool 20 minutes before turning out onto racks. Let cool completely.