In a medium mixing bowl, combine the softened butter with peanut butter and beat together using a hand mixer until smooth and creamy.

Then gradually add sifted powdered sugar, and slowly mix that in to avoid a sugar storm. Keep adding powdered sugar and beat until you get a mixture that sticks together but it's not too sticky. If it's still sticky, add an additional half a cup of sugar and beat again.

Cover with plastic wrap, and chill the mixture in the fridge for 30 minutes.

Line 2 half sheet size cookie sheets with parchment paper (we won't be baking these!), and lay 100 pretzels over them.

Remove the peanut butter mixture from the fridge and using a medium cookie scoop, portion out the mixture then divide each into 4 portions. Roll each between your hands to make small balls, and top each pretzel with a ball of peanut butter. Cover with another pretzel and gently press with your finger to secure. Repeat with the remaining pretzels to make peanut butter pretzel sandwiches.

In a microwave-safe bowl, melt the chocolate for 1 minute, stir, then microwave at 30-second intervals, stirring after each one until smooth.

Dip the pretzel bites halfway in the chocolate and place them back on the parchment paper to set.