Line an 8 by 8-inch pan with foil, leaving a 2-inch overhang. Spray with nonstick spray.
Melt butter and chocolate in a heavy bottomed saucepan over medium heat stirring constantly.
Once the chocolate is melted and smooth, stir in the sugar, eggs, salt, and vanilla extract together. Whisk until smooth. Add the flour and stir until thoroughly combined. Pour into pan.
Bake for 30 minutes. Remove from oven and let cool completely on wire rack.
Cream Cheese Frosting:
Beat the butter and cream cheese with a hand mixer until fluffy and light. Add the powdered sugar and beat until combined. Add the orange juice and zest and beat until thoroughly combined. Place frosting in a piping bag with a large star tip.
Remove brownies from the pan. Using a 1 1/2-inch round ring mold cut out the brownies into circles. Decoratively pipe the frosting on the brownies.