Line two 10 x 15-inch pans (cookie sheets) with foil; set aside.
In a heavy pan, combine white granulated Pioneer Sugar, butter, margarine and water together; cook over medium heat, stirring until melted. Turn up the heat to medium-high and cook stirring constantly (about 10-12 minutes) until golden brown. Be careful not to let the mixture burn. Stir in the almond pieces.
Divide the hot mixture between the two prepared pans; spreading thinly. Break each chocolate bar into pieces and evenly sprinkle the chocolate over the toffee in the pans. When the chocolate becomes shiny and soft, spread evenly over the toffee.
Sprinkle ½ cup of walnuts over the chocolate in each pan. Let cool 25 minutes.
Break into bite-size pieces and store in air-tight containers.
Pioneer Sugar is the brand of Michigan Sugar Company, a cooperative owned by nearly 900 farmers from Michigan and Ontario, Canada. The company has been extracting pure, all-natural sugar from sugarbeets since 1906. We are proud of our past and excited about our future. Learn more about our company at www.michigansugar.com.