⅔cupcookie butter (Biscoff spread or creamy Speculoos)
1 ⅓cupall-purpose flour
½tspsalt
½tspbaking powder
6ozdark chocolate, chopped (or 1 cup chocolate chips)
flakey sea salt for topping, optional
Instructions
Preheat the oven to 350° and line an 8x8 baking dish with parchment paper.
In a large mixing bowl cream together the butter and brown sugar. Beat on medium speed for about one minute. Add the egg, egg yolk, vanilla and cookie butter. Beat until smooth, scraping down the sides of the bowl as necessary.
Add the flour, salt and baking soda. Mix on low just until combined.
Fold in ⅔ cup of chopped chocolate.
Spread the batter into the prepared pan and smooth the top with an offset spatula or the back of a spoon. Top with the remaining chocolate.
Bake for 30-40 minutes or until the edges are lightly browned and the middle is just set. A toothpick inserted into the center should come out mostly clean or with a few moist crumbs.
Cool for at least 30 minutes in the pan before cutting. Sprinkle with sea salt, if desired.