Preheat oven to 400.

In a small bowl stir together olive oil, rosemary, sage, salt, pepper and garlic powder. Microwave on high for 45 seconds, allow to steep for five minutes (you can also add this to a small pan and bring to a boil on the stove top).

Place a layer of potatoes in an overlapping circle in the bottom on a 9-inch spring form pan.

Brush potatoes circles with olive oil mixture. Add a second layer of potatoes, brushing with oil, repeat until all potatoes are used. You should have three or four layers of potatoes, each layer brushed with the herbed olive oil. Once all potatoes have been used, pour 1/3 cup brown ale gently over the top.

Cover spring form pan with aluminum foil, bake at 400 for 25 minutes. Remove foil and continue to bake for an additional 30 minutes or until potatoes are fork tender.

Remove from oven and preheat broiler. Place potatoes under the broiler for 3 minutes or until the top is slightly crisp and golden brown. Press down firmly on the top of the galette with a spoon or fork. Allow to cool. Remove the sides of the spring form pan, cut galette into wedges.