Too much of a good thing is never a problem with this double decker peanut butter fudge that brings together two favourite flavours in a creamy, sweet treat. If you can pick a favourite, each layer is great on its own as well.
Line an 8x8-inch (2L) square baking pan with aluminum foil so the edges overhang the sides. In a medium saucepan over medium heat, combine 1 can of condensed milk, 1/2 cup (125 mL) peanut butter, and 1/4 tsp (1 mL) salt. Stir continuously just until bubbly. Remove from heat and immediately stir in chocolate chips and 1 tsp (5 mL) vanilla. Scrape into prepared pan and spread evenly. Refrigerate while making peanut butter layer.
In a clean medium saucepan over medium heat, combine the remaining condensed milk, peanut butter, and salt, stirring continuously just until bubbly. Remove from heat and immediately stir in peanut butter chips and remaining vanilla. Scrape onto chocolate layer, spreading to cover. Sprinkle with peanuts, pressing gently into fudge.
Refrigerate for 3 hours or until firm. Lift the fudge out of the pan and cut into small squares.