14 oz can sweetened condensed milk
3 cups semi sweet chocolate chips (or milk chocolate)
1 cup Peanut butter chips
*optional Heath Toffee bits
Combine in your bowl your chocolate chips, your Peanut butter chips,and condensed milk, mix together.
Microwave for three minutes, stirring every 30 seconds until smooth. Mix in Toffee bits except save 1/4 cup of toffee bits to sprinkle over the top once it's in the pan.
Pour into a 9 x 9 pan for thick squares or a 9 x13 pan for thin squares (I have a pan that is right in the middle of these and that is what I used).
Top with remaining toffee bits and place in the refrigerator for about 30 minutes.
*For variety use one 14 oz (2 cups) package of semi sweet chocolate chips and one 10 oz package of Andes mint chips and garnish with crushed candy cane. Mix and match whatever you like. Ideas came from here and here!