Preheat oven to 450 degrees.
Using a stand mixer with a dough hook attached, add the flour, sugar, salt and yeast. Stir, then add warm water.
With a spatula, stir to begin mixing then turn on mixer to medium speed and knead for 5 minutes.
Add oil to a paper towel and rub the inside of a medium bowl.
Dust dough with flour, place in bowl and cover with plastic wrap. Let sit for 30 minutes until dough has doubled in size.
On a lightly oil surface, after dough has doubled in size, turn dough out and cut into 8 pieces.
Roll between hands and make each piece of dough about 15 inches.
Take one piece of dough and form the shape of a pretzel.
Heat water and baking soda to boil, turn off and let cool for a few minutes.
Place each pretzel into baking soda bath for 30 seconds on each side.
Remove from water and place on a baking sheet that has been oiled or place on parchment paper that has been generously sprayed with non stick spray.
Once all the pretzels have been placed in baking soda water and place on baking sheet, sprinkle with pretzel salt or sea salt.
Pop in the oven and bake for 10-12 minutes or until pretzels are golden brown.
Remove from oven and brush with melted butter and enjoy!