Preheat oven to 170 degrees F. 

Pour warm water in bowl of stand mixer with sugar and yeast. Let sit for 10 minutes until yeast froths. 

Add salt, butter, and 2 cups flour. Mix on low until combined. Add the rest of the flour 1/2 cup at a time until the dough pulls away from the side of the bowl. (I used just under 4 cups of flour.)

Knead dough in stand mixer on low-medium speed about 5 minutes until dough is soft and easy to work with.

Roll dough into long log then cut into 12-14 equal pieces. Take each piece and roll into a 6-inch long snake. Place breadstick dough on two grease cookie sheets, leaving about 2 inches between each.

Place both cookie sheets in 170 degree oven for 20-30 minutes until doubled in size. Remove pans from oven and increase temperature to 400 degrees F. 

Once oven is heated to 400 degrees, brush breadsticks with melted butter and sprinkle with sea salt then bake in the oven for 12-15 minutes until golden brown. 

Remove from oven and brush garlic butter (melted butter + garlic powder) on breadsticks.