Ina Garten uses instant coffee or espresso powder in baking chocolatey things, to enhance the flavor. (
LINK) and (
LINK)
I’ve added a little piece of dark chocolate to chili before. Same idea as cocoa powder, I’d think.
I have a very old barbecue sauce recipe from a very old paperback book called Gourmet Cooking for Two by Beverly Ojakangas * The recipe includes a cup of coffee!
Excuse the yellowed paper and the food spots, lol
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(* As I said, the book is very old. My husband bought the book in order to learn to cook for himself, but also to impress the ladies. Worked on me!

)
The brownie recipe that I use most frequently contains coffee. The recipe calls for 2 tablespoons instant coffee but sometimes I use 3 tablespoons if I am making them for people who love coffee.
Coffee Brownies
Cooking spray
12 ounces semi-sweet or bittersweet chocolate
8 tablespoons unsalted butter
1/2 cup granulated sugar
1/2 cup packed light or dark brown sugar
2 large eggs
1 teaspoon vanilla extract
1 cup all-purpose flour
2 tablespoons unsweetened cocoa powder
2 tablespoons instant coffee or espresso powder
1/2 teaspoon salt
1/4 teaspoon baking powder
Arrange a rack in the middle of the oven and heat the oven to 350°F. Coat an 8x8-inch baking pan with cooking spray, then line with parchment paper so that it hangs over two sides of the pan. Lightly coat the parchment with cooking spray.
Coarsely chop 12 ounces of semi-sweet or bittersweet chocolate. Place in a medium microwave-safe bowl and add 1 stick unsalted butter. Microwave in 30-second intervals, stirring between each, until the mixture is melted and smooth, about 1 minute and 30 seconds total.
Add 1/2 cup granulated sugar and 1/2 cup packed brown sugar, and whisk to combine. Add 2 large eggs and 1 teaspoon vanilla extract, and whisk to combine.
Place 1 cup all-purpose flour, 2 tablespoons unsweetened cocoa powder, 2 tablespoons instant coffee or espresso powder, 1/2 teaspoon kosher salt, and 1/4 teaspoon baking powder in a small bowl and whisk to combine.
Pour the flour mixture into the chocolate mixture and stir until just combined with no streaks of flour. Transfer the batter to the baking pan and spread into an even layer.
Bake until a tester comes out with just a few crumbs, about 35 minutes. Let cool 1 hour before removing the brownie slab from the pan and cutting.