MEXICAN BROWNIES

2 sticks unsalted butter, plus more for greasing
2 cups sugar
4 large eggs
2 teaspoons vanilla extract
2/3 cup good-quality unsweetened cocoa powder
1 cup all-purpose flour
1 teaspoon ground Mexican cinnamon (canela)
1/4 teaspoon pequen chili powder or cayenne pepper
1/2 teaspoon kosher salt
1/2 teaspoon baking powder

1. Preheat oven to 350 degrees. Grease a 9x13 baking dish with butter.

2. Melt the 2 sticks of butter in a nonstick saucepan over medium-low heat; do not boil. Remove from the heat and let cool slightly. Add the sugar, eggs, and vanilla and stir with a wooden spoon until combined.

3. Add the cocoa, flour, cinnamon, chili powder, salt, and baking powder and mix until smooth. Spread the batter in the prepared pan and bake until a toothpick inserted in the middle comes out fudgy, 20 to 25 minutes. I had to do 28 minutes.

Cool in the pan on a rack before slicing.