In the bowl of a stand mixer, combine, yeast, 1/2 cup lukewarm water and honey; let sit for 10 minutes.
Add butter, salt and 1 ½ cups of flour to yeast mixture. With the dough hook attachment, process on speed 3 until smooth, adding 1 tbsp. reserved flour (1/2 cup) until the dough clings around the hook.
Increase the speed to 4 and knead for 3 minutes.
Remove the dough from the bowl and form a ball by pulling under.
Place it in a large bowl lightly oiled and turn to coat it. Cover with a clean dish towel and place it in a draft-free area such as an unheated oven. Let it rise for 1 ½ hours or until it doubles in size.
Lightly grease two baking sheets or line them with a silicone mat; set aside.
Punch the dough to deflate, form a ball again by folding under and then divide it into 4 equal pieces.
Take one at a time and press down stretching it into a rectangular shape before rolling it up tightly from one side to the other; pinch the seam together.
Roll it out back and forth with your hands to 12-inches long, tapering the ends. Set aside while working on the others.
Take the 1st piece that was rolled out and roll it out again to 24-inches long keeping the center slightly thicker.
Take the ends and form a “u” shape, then cross them over and over again. Bring them back to the top of the loop, pressing the ends firmly into the pretzel shape.
Transfer to the prepared baking sheet. Cover with a dish towel and let them proof for 30 minutes or until they double in size.
Preheat oven to 400ºF.
In a saucepan over medium-high heat, add 4 cups water and baking soda; stir to dissolve and bring to a boil.
Adding one at a time, drop a pretzel into the boiling water. Carefully flip it after 20 to 30 seconds and soak the other side for 20 to 30 seconds as well - if you let it soak longer, the pretzels will have a metallic taste to them.
Return the soaked pretzel to the baking sheets and continue dipping the remaining ones.
Gently brush the pretzels with an egg wash and sprinkle with some coarse sea salt; slash the dough with a sharp knife.
Transfer to the preheated oven and bake for 12 to 15 minutes or until golden brown.
Remove from the heat and place them on a wire rack to cool slightly, about 5 minutes. The leftovers can be stored in an airtight container or a large re-sealable plastic bag.