Combine sourdough discard, rosemary, parsley, garlic, and salt to form a shaggy dough. Knead until soft and smooth.
While the dough rises, prepare the filling by mixing butter, herbs, garlic, and salt.
After the first rise, divide the dough into 12 parts and shape each piece into an oval.
Spread each piece with the butter mixture, fold in half, and place folded side down in a bread pan, stacking them on top of each other.
Cover with plastic wrap and let rise for 30-45 minutes until puffy.
Bake until golden brown, then brush with remaining butter mixture and sprinkle with flaky sea salt.
Allow to cool before removing from the pan. Serve by peeling off layers and pulling apart to enjoy.
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