The Demon'S Float

Ingredients

• 1 1/4 c. sugar, divided
• 1 c. sifted cake flour
• 2 tsp. baking powder
• 1/4 tsp. salt
• 1 Tbsp. plus 3/4 tsp. cocoa
• 1/2 c. milk
• 2 Tbsp. margarine, melted
• 1 tsp. vanilla extract
• 1/2 c. chopped pecans or walnuts
• 1/2 c. firmly packed brown sugar
• 1/4 c. plus 1 1/2 tsp. cocoa
• 1 c. boiling water
• whipped cream