CHOCOLATE RICE KRISPIES TREATS

I added a little twist to the original recipe by adding in some walnuts and candied mango.
1 stick butter,
a pinch of sea salt,
1 cup chopped walnuts,
1/2 cup chopped candied mango,
10 ounce bag miniature marshmallows,
one box Chocolate Rice Krispies,
DIRECTIONS:
Spray a 13 x 9-inch (approx 30 x 22cm) rectangular pan with Pam.
In a large saucepan, melt the butter over low heat; add a pinch of salt, stir; add the marshmallows and stir constantly over the heat until completely melted. Remove from heat and add the walnuts, mango and Rice Krispies; mix until well combined; transfer mixture to the prepared pan and smooth over. Let cool completely before cutting.