Here is a Simple recipe for brownies with cookie butter icing.
Ingredients
Brownie Mix
2 Eggs
1/2 Cup of water
1/4 Cup of vegetable oil (Butter can be used as well but it makes them dry IMO)
Cookie Butter (its like peanut butter but with Biscoff Cookies)
1. Pour the Brownie Mix, Eggs, Water, and Oil into a mixing bowl and mix thoroughly until there's no more powdery brownie mix. Once you've mixed it, you can tell its perfect if there are multiple small bubbles in the brownie mix.
2. Get the Cookie Butter jar and Add 4 Tablespoons of it into the mixture and fold it in. Folding it in means taking the spoon or baking spatula you are using to mix, and lifting the batter with it over and over again in a circular motion. Like this:
3. Pour your Brownie Mix into a pan, personally I like using a muffin tin because then you can make individual brownies that way without having to cut them later. Spray your brownie pan of choice with a nonstick baking spray. Once that is done, take a spoon and the Cookie Butter jar and place a large dollop of the cookie butter in the individual brownies centers.
4. Set the Oven to 350 Degrees for 25 minutes and then carefully place the Brownies into the Oven. once the Oven beeps, use a toothpick to test if the Brownie mixture has actually baked in the center. If it hasn't, place it back in for about 5 minutes and take it out again.
5. Let the brownies cool off. Next, you will take any remaining cookie butter and place it in a microwavable safe bowl. You will microwave it until it is soft and pourable, then you can drizzle or pour it over your brownies to your liking.
And Bam you have Cookie Butter brownies! I would send a photo of the ones I made but my family literally devoured all of them lol.