Place 1/2 cup (113 g) unsalted butter over low heat in a saucepan. Stirring occasionally, allow it to foam and create golden specks. Remove from heat, and allow to cool to room temperature (don’t use it too hot). Note: you can skip the browned butter if you’d like and just melt butter and allow it to cool to room temperature. Fit your stand mixer with kneading arm. Add your starter, milk, honey, sugar, salt, 57 g browned butter (half of what you made) and egg yolk to mixer bowl and whisk together. Add 550 grams of bread flour, rosemary, and thyme and knead for ten minutes. This dough is high hydration so it’s important to work the gluten at this stage.
Spray a straight edge container with oil. Transfer dough to oiled straight edge container (bowl will also work). Perform a few sets of stretch and folds to work dough into a ball. Cover, and allow to double in size (proofing 100% in volume). I allowed my dough to proof 6 hours in the oven with the light OFF, for a warmer environment (80 degrees).
Spray a surface with coconut oil, and remove dough from container. To evenly weigh rolls, put your empty container on your scale and tare it to 0 g. Weight the total of your dough, and divide your total by 12. My rolls each weighed approximately 100 g. Remove your dough and weigh out 12 rolls. Roll and shape out your rolls. A bench knife is really useful for this, I use (https://amzn.to/3Yu9Rl1). Spray a 9x13 cooking sheet with coconut oil or olive oil. Transfer rolls to pan in 3 rows of 4. Cover loosely with a damp towel or plastic and allow to proof until doubled in size, about 2 hours at 80 degrees.
Preheat oven to 375 F. When oven is hot, bake rolls for 40-45 minutes and tops are golden brown (NOTE: these rolls can brown quickly, cover with foil if tops are getting too done). Internal temperature should be between 195 F and 200 F.
While rolls bake, prepare herb butter. Slightly warm remaining browned butter, and add 1/2 teaspoon rosemary and 1/2 teaspoon thyme. Whisk together.
Brush butter mixture over rolls immediately after removing from oven. Enjoy!