In a large measuring cup, combine warm milk and brown sugar and mix well. Add yeast and let sit for 5 minutes, until foamy.
1½ cups warm milk, 1 Tablespoon brown sugar, 1 Tablespoon active dry yeast
Meanwhile, in a large mixing bowl combine salt, oil, and 4-½ cups flour. Once the milk and yeast have proofed for 5 minutes, pour into flour mixture.
2 teaspoons salt, ¼ cup vegetable or olive oil, 4½ to 5 cups all purpose flour
Knead (or mix) for 5 to 7 minutes, until dough becomes smooth. Dough should not be sticky and should pull away from the sides of the bowl easily. See Note 1.
Place dough in oiled bowl and cover with plastic wrap for 45 minutes, or until dough has doubled in size. While dough is rising, prepare 2-3 baking sheets with parchment paper, prepare the baking soda bath by combining water, baking soda, and salt in a large pot and bring to a slow boil, and preheat the oven to 450 degrees F. 10 cups water, 1 teaspoon salt, ½ cup baking soda
When dough is ready, use a ⅓ cup measuring cup to divide dough into 8-10 equal pieces. See Note 2.
Roll pieces into a 24 inch rope. Form into a U shape, then twist the ends over each other twice. Pull the "legs" down and press them to the bottom edges of the pretzel to make the classic three hole shape. Sometimes a dab of water on the ends helps them stick together better. Gently lower the pretzels one by one into the baking soda bath and boil for 30-45 seconds. Lift them out with a flat slotted spatula and place on the parchment paper prepared baking sheets.
Brush with beaten egg, and bake for 8 minutes (no longer than 10) at 450℉ until golden brown. Optional: Brush with butter and sprinkle with pretzel salt before serving. 1 egg, beaten for brushing onto pretzels