Preheat your oven to 350 degrees and grease a square baking pan.
In a large bowl, whisk flour, cocoa powder and salt. Set aside.
In a separate bowl, mix together melted ghee and monk fruit/sugar. Add in the eggs, vanilla and milk. Mix until fully combined.
Add in your dry ingredients to your wet and mix until smooth. Your batter should be thick!
Evenly spread batter into your greased pan and bake for about 25-30 minutes.
While baking, prepare your frosting by combining all ingredients in a food processor until smooth.
Chill the frosting in the fridge and prepare the chocolate covered pretzels.
Microwave chocolate in a small bowl and stir until smooth. Dip the pretzels in the chocolate and place on a parchment lined baking sheet to cool. You can pop these in the freezer to harden faster.
Once brownies are baked and cooled, spread the pb frosting over top and assemble your pretzels.
If needed, place the brownies in the freezer until the frosting has hardened slightly.