Dark Chocolate SunButter Candy Bars

1. Line a rimmed, half-sheet baking pan with waxed paper or a silicone baking mat; set aside. Have a second baking sheet nearby for finishing the chocolate bars.
2. Place the SunButter, brown sugar, butter, and salt into a small saucepan. Continuously stir over medium-low heat until mixture is melted, fully combined, and just starting to gently boil. Remove from heat.
3. Gradually stir the powdered sugar into the SunButter mixture until crumbly; the mixture will be stiff but should not be too dry. (I end up using between ¾ cup and 1 cup of powdered sugar, depending on humidity and how well it was sifted. Use your best judgment here.)
4. Dump the SunButter filling onto the prepared baking sheet.
5. Use your hands to press the crumbly filling into a mound.
6. Cover the mound with a sheet of waxed paper and roll out to ¼ inch thickness, piecing dough together as necessary. (I go with a freeform rectangle so exact perimeter measurements are unnecessary.)
7. Chill the rolled filling in the refrigerator for about 45 minutes, or until firm.
8. In a small bowl, melt the dark chocolate melts in 30-second bursts on high heat in the microwave, stirring in between bursts, until the chocolate is melted and smooth.
9. Remove the chilled filling from the refrigerator. Also remove the waxed paper from the top of the filling.
10. Pour half of the melted dark chocolate over the filling and spread over the edges with a knife.
11. Allow the chocolate to completely set; about 20 to 30 minutes. You can chill it in the refrigerator to speed up the process but the chocolate may “bloom” (discolor) due to the drastic temperature fluctuation.
12. Once the first side of chocolate can completely set, place a sheet of waxed paper over top of it. Pick up the baking sheet with a hand placed firmly underneath the baking sheet, and the other hand placed firmly on top of the waxed paper covered chocolate. Quickly flip the chocolate over, and gently set it on both the waxed paper and the other baking sheet. Remove the waxed paper from the SunButter side.