I don't actually have a recipe I mean I put frozen strawberries and frozen mango (more strawberries than mango) and then I add my Isoflex whey protein isolate (vanilla). Then I put about half a cup of skim milk, but if that's not enough liquid then I add water until it's enough. It's so bloody good! I make it really thick, which is why I don't put much liquid, it reminds me of a milkshape type thickness, I feel like I'm having dessert!
Tom, yeah I was wondering about the curdling thing too, which is why I asked if you added milk to it. But obviouly you're doing fine drinking it, so it's gotta be safe, lol. I should try and add some one of these days, I have half a lemon in my fridge right now too, hehe. If I like it, then I'll get more lemons and try a full lemon's juice in there.