So, I quite like my juicer(!), and I love the possibilities it lends to expanding my overall ingredient/culinary palette. Fresh juice is invigorating - straight up, blended, or as part of whatever I'm making. The most important thing is to use vibrant, healthy produce. Use the best quality produce you can get. It's important to seek out organic or sustainably grown fruits and vegetables, but if that's not happening, wash it gently, but thoroughly.
A few observations: A blender and a juicer are entirely different beasts. I know this seems obvious, but the blender does chop-chop, and the juicer separates all the fibers and solids from the juices. The juicer produces essences that are incredibly intense, alive, and bright. The flavor is main-lined. Beyond fruits and vegetables, I experiment with grains and nuts (see below).
Everyone seems to think using a juicer is a royal pain. Primarily the clean-up part. And that is partially true. It seems most convenient to juice in batches, set aside what you might use in the immediate future as well as the forthcoming day or two, and then freeze any juice beyond that immediately. Not as perfect as freshly juiced, but still ok.
One thing I'll add here, read you juicer's instructions before diving in. What works in mine might not work in your model. There are a range of different types of juicers, and a range of ways they extract juice.
Almond Milk: Soak 1 cup / 5 oz almonds overnight, covered, in filtered water. Drain. Add three cups water, and ladle into juicer. This produces a full-bodied almond milk. If you like it a bit thinner, go with 4 cups water. The flavor really sings when you season it with a touch of salt and sugar. Just go with your taste buds, until it tastes good to you. Makes about 3 1/2 cups. Also, be sure to keep the meaty by-product of making the almond milk, just scrape it out of the juicer. Salt it a bit, and it's a great homemade almond butter.
Oat Milk: Soak 1 cup / 3 oz rolled oats (not instant) overnight, covered, in filtered water. Drain, add 3 cups water, and ladle into juicer. Makes about 4 cups. Note to self to try a version with toasted oats. I could imagine experimenting with it as and ingredient in custards, puddings, french toast, and the like.
Pistachio Milk: Soak 1 cup pistachios / 5 oz overnight, covered, in filtered water. Drain, combine with 3 cups water, and ladle into juicer. This was my favorite non-fruit juice by a stretch. Really nice. I kept trying to combine it with little accents like orange blossom water, or citrus zest, but in the end I liked it best straight. Makes about 3 1/2 - 4 cups. And like the almond milk be sure to keep the meaty by-product of making the pistachio milk, just scrape it out of the juicer. Salt it a bit, and it's a great pistachio butter.
Sesame Milk: Had high hopes for this one but it really didn't work. The unhulled seeds never broke down in the juicer.
Fennel Juice: Trim the root end, but use all the rest of it. 1 large bulb = ~1 cup juice.
Celery: Lob off the root end and use the rest. And I didn't bother restringing. 1 medium bunch = 1 1/2 - 2 cups juice. I'm enjoying using the celery juice as a component in all things brothy. The fennel juice as well, but to a lesser extent.
Cucumber: Juice it all. And leave the skin on, it lends a nice color. 1 large (8 oz) cucumber yields about 1 cup of juice. Not really the season for cucumber juice at the moment, but I juiced it anyway. Super cooling.
Cilantro:1 big bunch, leaves and stems = 1/3 cup juice. I threw a couple serranos (deveined and deseeded) into the juicer here as well for a spicy version. You just know it's going to be good swirled into yogurt or creme fraiche and spooned into a bowl of roasted tomato soup!
Dill: 1 large bunch (stems and fronds) yields about 3 tablespoons juice. Equal parts dill juice + olive oil and a pinch of salt has been great over greens, savory pancakes, and eggs this week. I imagine like the other intense herb juices, it would be welcome as a vinaigrette component, drizzled over gratins, and tarts as well.
Ginger: 8 ounces unreeled yields about 3/4 cup ginger juice. Freezes quite well. I've been using in teas, broths, citrus juice (grapefruit-ginger is my favorite), dipping sauces, etc.
Grapefruit: 1 large = 1 cup juice. I could live on this during the winter.
Pomegranate: I'm not sure I'd recommend using a juicer here. Mine definitely wasn't happy. That said, the resulting juice is electric - straight-up incredible. Juice the seeds only, but review your juicer's guidelines before an attempt. 1 large pomegranate = ~ 1 cup of seeds = 1/3 cup fresh juice.
Carrots: 1 lb = 1 cup juice. You know, it's just occurring to me as I'm typing this to try a carrot soup with pure juiced carrot. Use it to make the silkiest carrot soup ever.
If you're a juicer, here's my plea to let me know what you use yours most for. Or is it the sort of thing that just collects dust in everyone's pantry for most of the year?
A few combinations I tried:
Pistachio Milk: 1/2 cup pistachio milk, 3/4 teaspoon honey or sugar, 1/8 teaspoon sea salt, tiny pinch of ground clove. But like I said up above, this is really good straight.
Spicy Carrot: 1/4 cup carrot juice + 1/4 cup almond milk + 1/16 teaspoon cayenne + 1/2 teaspoon ginger juice + 1/8 teaspoon fine grain sea salt + 2 tablespoons celery juice.
Pomegranate Almond: 1/4 cup pomegranate juice + 1/4 cup almond juice + 2 drop rose water + pinch of salt, 1 teaspoon lemon juice + sweeten to taste.
Cucumber Celery: 1/4 cup cucumber + 1/4 cup celery + 1/16 cayenne + pinch of salt.