+1 on Trader Joe's. Their "Pound Plus" (17.6 ounce = 500 grams) Belgian chocolate bars are good quality but reasonably priced. Also, being so big and thick, they stand up to more physical abuse. Having toted them a lot of places, the dark chocolate bars don't melt nearly as easily as a Hershey's milk chocolate. And they taste a lot better.
Nutrition Facts from the "Dark Chocolate" package (although we live 1400 miles from the nearest TJ's, we keep them in stock in our pantry):
Serving: 3 squares = 38 grams = 1.3 ounces. Servings per package: 13+; calories: 220, fat calories: 110. Minimum 54% cocoa solids.
So 1.1 pounds gives you 2900 calories. That's pretty dense.
They also have milk chocolate (not my preference), dark chocolate with almonds (pretty good) and, I think, a bitter-sweet..
Also, +1 on Nate's ideas about insulating your foods in your sleeping bag. This works amazing well and I use that trick to transport frozen salmon on 12-hour journeys without an ice chest in addition to keeping cheeses and chocolate cool on a backpacking trip. If you're at altitude with big diurnal temperature swings, you can cool the food down again each night (shade it from the morning sun) and be good for another day. Since your first night's meal is only carried for one day, it can be something like homemade caribou or bear stew, frozen solid. That, in the middle of your sleeping bag can in turn keep lots of other "luxury" (but highly caloric) things cool for early in your trip. As discussed in other threads, any cured meat (salami, hot dogs, bacon) is fine for days near room temperature. Roast beef, turkey breast, fried chicken, etc, keep for a few days if cool. Fully refrigerating them isn't necessary.
edited to add: Delmar is in the "Inland Empire" which close to TJs started. You can't swing a NeoAir without hitting a Trader Joe's. Just follow all the Priuses.