- Preheat oven to 350°F. Place the walnuts on a cookie sheet. Bake for 10-15 minutes or until golden and fragrant. Let cool slightly and then roughly chop. 
- Bring a small sauce pot filled with 1-inch of water to a low simmer. Place a heat proof bowl over the pot. - Place the chopped chocolate in the bowl and stir until fully melted, making sure the chocolate doesn’t burn, about 7-9 minutes. 
- Remove the chocolate from the heat and let cool for about 5 minutes. Stir in the chopped walnuts and marshmallows. Pour onto a sheet tray lined with parchment paper and smooth into an even layer. Evenly sprinkle with the crushed graham crackers and salt. 
- Let cool fully at room temp or place in the freezer for 20 minutes, then break into large pieces. - Recipe Courtesy of Megan Mitchell