1) Dissolve yeast in the warm water. Let sit for 5 minutes until foamy (unless using instant dry yeast, in which case proceed directly to the next step)
2) Add sugar, milk, and salt, and mix
3) Add enough flour to form a moderately stiff dough so that it is not sticky to the touch. May need up to ½ more flour.
4) Knead the dough until smooth, 8 to 10 minutes
5) Roll the dough into the size and shape of your baking pan (about 13×18-inches)
6) Spread half of the butter onto the bottom of the pan and then place the dough into the pan
7) Preheat oven to 350°F
8) Let rise in warm, draft-free place for 15 minutes
9) Spread remaining butter on top of the dough
10) Top dough with cheese and optional toppings or leave it plain
11) Bake at 350°F for 20-25 minutes or until golden brown
12) Cut into bread sticks and serve with marinara sauce