Mix the dough by combining sourdough discard, flour, salt, sugar, oil or melted butter, and instant yeast (if using). Stir until it forms a soft dough.

Let the dough rise until it doubles in size, which can take a few hours at room temperature or less with warm water and yeast.

Divide the dough into small balls and flatten each slightly. Brush with garlic butter and add chopped parsley or cheese if desired.

Stack or place the balls closely in a baking pan, cover, and let rise again for 30-60 minutes.

Preheat the oven to a medium-high temperature. Bake the bread until the top is golden brown and the inside is cooked, about 20-30 minutes depending on size.

Brush with additional garlic butter immediately after the bread comes out of the oven, then let cool slightly before pulling apart to serve.