My MIL makes lemonade scones all the time and she uses this recipe:

3 cups SR Flour
1 cup Cream
1 Cup Lemonade (she uses is warm too)

She also makes golden syrup scrolls out of the mixture as well. When you flatten it out to cut out scones, leave it as is and drizzle golden syrup over the top to cover. Roll up and cut into scrolls. Place in a baking dish. Then mix about 3/4 cup golden syrup with about a cup of boiling water. Pour this over the scrolls and then sprinkle them with coconut. Cook for around 40 minutes or until brown and cooked through. YUMMY!