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Lynn’s Black Hills Brownies

My Sister-in-Laws sister, Lynn, brought these to a family gathering.  It took a lot of prodding to get the recipe out of her.  Do your first batch with double frosting the way Lynn always does.

Lynn’s Black Hills Brownies

Lynn’s Black Hills Brownies

Here at Gurley’s, we love the chewey, crusty, soft-ish combo. The best is when they are just out of the oven with a bit of vanilla ice cream and maybe a smidge of hot fudge. Mmmmmmmmm… Yummy!


  • Base:
  • 6 (1-oz.) squares unsweetened chocolate
  • 1 cup butter
  • 8 large marshmallows
  • 1 tbsp. corn syrup
  • 3 cups sugar
  • 6 large eggs
  • 1 ½ tsp. salt
  • 2 tsp vanilla
  • 2 ¼ cups flour
  • ¼ cup Gurley’s Chopped Walnuts or Pecans
  • Frosting:
  • 1 1/3 cups sugar
  • 6 tbsp. butter
  • 6 tbsp. milk
  • 1 cup Gurley’s Semi-Sweet Chocolate Chips


  1. Preheat oven to 350°F.
  2. Grease and flour a 15” x 10” x 1” pan.
  3. In a large, heavy saucepan melt chocolate, butter, marshmallows and corn syrup. Remove from heat.
  4. Stir in sugar until well mixed.
  5. Beat in eggs, one at a time.
  6. Stir in salt and vanilla.
  7. Blend in flour then fold in nuts.
  8. Spread in prepared pan. Bake for 30-35 minutes.
  9. Frost when cool with:
  10. In a saucepan add 1 1/3 cups sugar, 6 tbsp. butter and 6 tbsp. milk and boil for 3 minutes stirring constantly. Remove from heat and add 1 cup Gurley’s Semi-Sweet Chocolate Chips. Stir until melted. Spread on cooled brownies.