Chewy Chocolate Brownie Cookies

Can't decide if you want brownies or cookies? No problem, just combine the two into one bite-sized handheld piece of ooey-gooey chocolate heaven.

When I was a kid, I used to make these with brownie mixes, but I reckon since I'm an adult, I should make the grown-up version.

• 15g all-purpose flour
• 1/8 teaspoon baking powder
• Pinch of salt
• 1 egg
• 70g brown sugar
• 1 tablespoon instant coffee powder
• 1 teaspoon vanilla extract
• 1 tablespoon unsalted butter
• 100g fine-quality bittersweet chocolate (60% cacao or more), finely chopped if not using buttons
• 1/2 cup chocolate chips

Preheat oven to 190C. Line 2 baking sheets with parchment paper. Melt butter and chocolate in a metal bowl set over lightly simmering water, stirring till smooth. Remove from heat and let cool to warm.

In a small bowl, whisk together the flour, baking powder, and salt. With an electric mixer, whip the eggs to break them up. Then add the sugar, espresso, and vanilla and beat on high speed for 15 minutes, until thick.

Gently fold the chocolate mixture into the egg mixture until partially combined (there should still be some streaks).

Add the flour mixture to the batter and carefully fold it in. Finally, fold in the chocolate chips. If the batter is very runny, let it rest until it thickens slightly, about 5 minutes.

Drop the batter by heaping tablespoonfuls onto the prepared baking sheets and bake until puffed and cracked, 8 to 9 minutes. Cool on a wire rack before removing from the baking sheets. Makes about 18 cookies.