We are staying in deep rural France in Finisterre, Bretagne west of Quimper. Probably you think we are in the ocean, but actually we are 1K from the ocean.
Bretagne and Normandy are the areas of apple production. So, cidre (5% alcohol) is a common drink. There are 20 ciderie within 30K of our residence. Seafood is a common thing here. Another very common cuisine is the galette, a crepe made of buckwheat flour on a special griddle, often cooked until the outside is a deep brown. It is filled often with savory (ham, cheese) fillings.
I frequently advice not renting a car in Europe. In this part of France, there is almost no public transport, so we have a small car. It's fine to drive, now that I found the reverse gear.
There are many supermarkets here - Super U, Lidl, Leclerc. We are trying to support the small independent boulangeries by getting bread there. Macaroons were €1.20 - very inexpensive, very good. In the US, they are always $3 or more, usually $4. So stock up.
When you are driving in France, you will quickly learn the key to survival - navigating the rond-point, or traffic circle. Last night, in a 25K trip, we probably encountered 30 of these. They are not difficult, but are intimidating in high-traffic areas. You must be bold but not deranged. Almost no stop signs or traffic lights.
Wine is 1/2 US prices. Food in general is 75% of US costs. We are cooking in our house a lot. We stock up on foie-gras, bread, croissants, other staples.
I am still trying to understand the "assumed" speed. No one drives the limit. There are signs for "auto-camera" which are on the side of the road with concentric arches. We are very careful about the limit there. Our friend is the road supervisor for Finisterre, and he advices great caution around those signs. We have seen 2 in 7 days of driving.