Note: these brownies can be made in a 9x9 baking dish or in a 9x13 baking dish. Remember to adjust baking time and amount of topping accordingly. For 9x13 dish, it will take 30-35 minutes. For 9x9 dish, it will take 35-40 minutes.
**Cook bacon first and save some grease from cooking it.**
Preheat oven to 350 and line a baking dish with aluminum foil. Press the aluminum foil flush with the baking dish. Lightly grease the foil.
In a medium sauce pan, start melting butter over medium heat and add bacon grease. Add chopped baking chocolate and start stirring slowly. Keep stirring and heating until chocolate is melted. Take off heat. Let the mixture cool a bit.
In a large mixing bowl, whisk together eggs and both sugars.
Start pouring in chocolate mixture into the mixing bowl, while stirring. Mix until all incorporated.
Add flour and baking powder. Mix until all evenly combined.
Fold in 4 crumbled bacon strips and 3/4 cup broken pretzels into the batter.
Pour the batter into the prepared baking dish. Spread evenly.
Top off with some more crumbled crispy bacon strips and broken pretzel pieces.
Bake for 30-40 minutes (depending on the size of baking dish you're using).
Take out of the oven and let it cool for about 10 minutes.