Makes 12 muffins
1 2/3 cups all-purpose flour
Preheat the oven to 400 degrees Fahrenheit.
In a mixer fitted with the paddle attachment, blend together the flour, sugar, baking powder and salt. Add in the peanut butter and mix until downey with some pea-size crumbs interspersed. In a separate small bowl, mix together the milk, egg and melted butter. Gradually add this to the turning flour-peanut-butter mixture until just combined. Stir in the chopped Snickers bars with a big spoon.
Line 12-muffin cups with paper baking liners and spoon the batter evenly amongst the 12 muffins.
Bake for 20-25 minutes at which point the tops should be risen and golden brown with a firm-ish top. Cool in the muffing tin for 5-10 minutes and then remove the muffins to a wire rack to cool further if necessary.
Eat immediately. With a big glass of milk.