All my lemonades end up as summer lemonades. Probably because I only make lemonade when it's summer...?
Lemon juice (best would be fresh)
Mix together 4/5 water and 1/5 orange juice. Add freshly cut ginger, brown sugar, ice cubes and squeezed lemon juice (for all: as much as you want. Depends on which flavour your want to be the strongest. I used 1/3 of a lemon, about 2-3 cm of ginger (it was a small root) and about 2 1/2 tsp brown sugar).
Be careful. The longer you let your lemonade stay the stronger the ginger flavour will get (This is actually the part I like)