A Grown-Up Brownie (Mexican Brownies) – Simmer + Sauce

Ingredients

• 1/2 cup all-purpose flour
• 1/3 cup unsweetened cocoa powder
• 1/4 teaspoon salt
• 1/2 teaspoon cinnamon
• 1/4 teaspoon cayenne pepper
• 1/2 cup unsalted butter
• 1 cup semisweet chocolate chips
• 1 cup sugar
• 1/4 cup brown sugar
• 1 1/2 teaspoons vanilla extract
• 2 eggs
• 1 egg yolk