Preheat oven to 350
Line a large, rimmed sheet pan with baking paper
Melt butter on the stovetop in a very small saucepan.
Add crushed garlic until it is fragrant and fully cooked (around 1-2 minutes)
Stir garlic butter, starter, and herbs together in a small bowl. You can also add a little bit of water here if your mixture is too thick and not very spreadable
Pour the mixture into the baking sheet and try your best to spread it out evenly by gently shaking the pan or using the back of a rubber spatula
Sprinkle salt to taste
Bake for 5 minutes before scoring the dough with small pasta cutter or pizza wheel
Place back in the oven for another 15-20 minutes or until lightly browned and crisp-be sure to watch carefully for burning if the crackers are spread out thin