Preheat your oven to 350°F (175°C). Line two baking sheets with parchment paper or silicone baking mats.
In a large mixing bowl, combine the butter, granulated sugar, and brown sugar. Mix until well combined.
1 Cup Butter, 1 Cup Granulated Sugar, ½ Cup Brown Sugar
Add the eggs and vanilla extract to the butter-sugar mixture and mix until smooth.
2 Eggs, 1 Teaspoon Vanilla Extract
In a separate bowl, whisk together the flour, baking soda, and salt.
2 ½ All Purpose Flour, ½ Teaspoon Baking Soda, ½ Teaspoon Salt
Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
Gently fold in the toffee bits, crushed pretzels, semi-sweet chocolate chips, and milk chocolate chips until evenly distributed in the dough.
1 Cup Toffee Bits, 1 Cup Semi Sweet Chocolate Chips, 1 Cup Pretzels
Using a 1/4 cup cookie scoop or by hand, form the dough into equal-sized balls and place them on the prepared baking sheets. Leave enough space between the cookies as they will spread during baking. You may need to bake in batches.
Add one pretzel on top of each cookie dough ball. Bake in the preheated oven for 12-15 minutes or until the edges are golden brown and the centres are set. The cookies should still be soft.
Extra Pretzels
Remove the cookies from the oven and allow them to cool on the baking sheets for a few minutes before transferring them to a wire rack to cool completely. Enjoy! :)