In a large mixing bowl, combine warm water, brown sugar, and active dry yeast. Let sit for 5 minutes until frothy.

Add all-purpose flour, fine sea salt, and melted unsalted butter. Stir until combined, then knead on a floured surface for 5-7 minutes.

Transfer dough to a greased bowl, cover with a damp towel, and let rise in a warm place for 30 minutes.

Punch down the risen dough, divide into 8 pieces, shape into pretzels, and place on a greased baking sheet.

Boil 10 cups of water, add baking soda, and boil each pretzel for 30 seconds on each side.

Preheat oven to 450°F. Brush pretzels with melted butter and sprinkle with toppings. Bake for 12-16 minutes until golden brown.